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JPS61185318U |
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JPS61184411U |
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JPS61242742A |
PURPOSE: To manufacture easily a massive chain band by twisting a chain-like band formed by fitting adjacently two rings to one ring to the extreme to form a two-row ring developed band and embedding and fixing ornamental wires to the sp...
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JPS61242741A |
PURPOSE: To manufacture extremely easily various irregular-shaped bands by twisting a chain-like band formed by fitting adjacently two rings to one ring in the direction opposite from the ring linkage to release the overlaps and fixing t...
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JPS61242743A |
PURPOSE: To manufacture extremely easily a chain band developed with rings into two upper and lower rows by twisting a chain-like band formed by fitting adjacently two rings to one ring to the extreme in the direction opposite from the r...
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JPS61232032A |
PURPOSE: To produce annular member with good accuracy and good yield and to increase the impact resistance as well by forming with forging the annular blank obtd. by bending a bar like blank annularly and by butt-welding thereafter the b...
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JPS61502251A |
(57) [Abstract] Since this gazette is application data in front of an electronic application, the data of an abstract is not recorded.
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JPS6143159B2 |
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JPS6141653B2 |
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JPS6141654B2 |
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JPS6137021B2 |
A reconditioned worn chain link (11) with a body and opposed ends has a slightly increased cross-section (24) at its mid portion which has less tensile strength than a new original link as a result of heat treatment but less overall leng...
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JPS61180641A |
A straight wire length is bent against a mandrel into an obtuse V-shape and then into a C-shape at a first station, and against another mandrel into an oval shape at a second station. When making the V-shape bend the leading edge of the ...
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JPS6133072B2 |
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JPS6133073B2 |
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JPS61162242A |
PURPOSE: To produce easily a chain for ornamentation which is excellent in design using a composite material constituted by joining plural pieces of long- sized members made of a noble metal with a spacer metal therebetween to manufactur...
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JPS6125467B2 |
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JPS6167949U |
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JPS6167950U |
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JPS6166512U |
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JPS6178531A |
PURPOSE: To reduce a cost together with improving a durability by reducing the hardness of both end parts of a ring plate less than that of the center body part. CONSTITUTION: The annealing of apex parts 4, 4 is performed with pinching t...
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JPS6158943U |
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JPS6149642U |
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JPS617468B2 |
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JPS613979B2 |
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JPS6059987B2 |
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JPS6059988B2 |
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JPS6058305B2 |
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JPS60247600A |
The invention relates to making a jewellery link chain (14) of chain links which are arranged offset by 90 DEG relative to one another in each case and engage in one another, the chain links consisting of multiple-turn spiral elements (6...
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JPS6050870B2 |
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JPS60224738A |
PURPOSE: To manufacture a roller chain having superior wear resistance, strength and load resistance by using an Al alloy contg. Si in the hypereutectic region obtd. by adding specified amounts of Si and Cu to Al or further adding Mg. CO...
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JPS6037150Y2 |
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JPS60160959U |
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JPS60148784U |
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JPS60146799U |
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JPS6031001Y2 |
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JPS6038235B2 |
A method and apparatus are provided for soldering abutting ends of links of chains of precious metals. The soldering is accomplished by applying solder to the abutting ends, continuously feeding the chain onto a rotating surface such as ...
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JPS60158974A |
An apparatus for automatically soldering flexible jewelry chains to certain parts such as locks or ornamental members wherein the parts to be soldered to the chain are retained by a retaining device and the chain is disposed on a carrier...
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JPS6033573B2 |
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JPS60109419U |
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JPS60109417U |
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JPS6092900A |
The invention relates to a method and a device for producing a jewellery link chain, in which there are chain links which engage in one another at least partially, at least in pairs, such as is the case in a byzantine chain or royal chai...
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JPS6072686A |
PURPOSE: To weld easily chains with high efficiency and to reduce production cost by heating chain rings to the melting temp. necessary for welding in short time and increasing instantaneously pressurizing force thereby welding the chain...
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JPS6028940U |
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JPS60139B2 |
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JPS59226730A |
A power transmission chain-belt, especially adapted to transmit power between the pulleys of a pulley transmission, such as a variable ratio pulley transmission. The chain-belt is constructed of a plurality of ranks or sets of interleave...
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JPS59148274U |
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JPS5935706B2 |
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JPS59120042U |
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JPS59125236A |
PURPOSE: To obtain an electric welded anchor chain having high strength, toughness and fatigue resistance by providing fitting holes bulged in the central part toward the inside on both end faces of a stud, fitting the inside side faces ...
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JPS5988225A |
The assembly machine of the present invention automatically assembles chain elements into a continuous chain at a high speed. The machine automatically aligns and assembles elements into assembled relation and includes structure for alig...
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