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JPS543062B2 |
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JPS542904B2 |
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JPS542194B2 |
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JPS542195B2 |
A rapidly rotatable piercing tool of hard material for forming by frictional heat and pressure a hole surrounded by a boss in a metal plate or the wall of a metal pipe, the pipe part for making the hole to size having basically triangula...
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JPS546332U |
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JPS54461B2 |
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JPS53142368A |
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JPS5350748Y2 |
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JPS5343459B2 |
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JPS5342310B2 |
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JPS5342024B2 |
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JPS5340569B2 |
An inexpensive process for making a minute circular hole having a smooth peripheral edge in a thin wall of a metal article. A depression is formed on one surface of the wall so as to simultaneously form a projection on the other surface ...
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JPS5339186B2 |
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JPS5339185B2 |
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JPS5339187B2 |
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JPS5339188B2 |
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JPS53118266A |
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JPS53110957A |
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JPS53110958A |
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JPS5334799B2 |
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JPS5338688Y2 |
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JPS53106379A |
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JPS5333537B2 |
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JPS5395782A |
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JPS53102933U |
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JPS5329148B2 |
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JPS5394253A |
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JPS5390347A |
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JPS5397142U |
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JPS5396332U |
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JPS5393534U |
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JPS5325708B2 |
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JPS5385924A |
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JPS5329815Y2 |
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JPS5324021B2 |
1431456 Punching COMALCO (J & S) PTY Ltd 6 July 1973 [17 July 1972] 32397/73 Heading B3W Longitudinal slots are formed in strip 33 having a constant cross-section by driving it between a series of coaxial roller cutters 36 acting against...
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JPS5379760A |
Apparatus for and a method of making expanded lead strip for use in fabricating plates for lead-acid secondary batteries. Lead strip is expanded into a non-planar shape with two mesh portions divided by a longitudinally extending unexpan...
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JPS5378969A |
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JPS5321378B2 |
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JPS5319073B2 |
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JPS5318972B2 |
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JPS5322629Y2 |
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JPS5322628Y2 |
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JPS5365255A |
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JPS5363626U |
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JPS5353564A |
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JPS5313409B2 |
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JPS5313186B2 |
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JPS5349826A |
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JPS5312467B1 |
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JPS5312276B2 |
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