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6090194 |
A dental porcelain composition comprising a continuous glassy phase and a discontinuous, substantially uniform crystalline phase comprising cubic leucite. The porcelain exhibits coefficients of thermal expansion in the range of about 11 ...
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5806878 |
A collapsible wheelbarrow has a wheel assembly. The wheel assembly has a collapsible rim and a tire mounted to the rim. The tire comprises a flexible woven fabric and an inner tube for expanding the tire. The wheel assembly rotatably mou...
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5348379 |
An improved wheel for a bicycle or similar vehicle has a segment in the rim of the wheel which is selectively removable from the usual circular path of the rim, creating a gap in the rim. The rim is then contracted to form a smaller circ...
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5267888 |
A toy vehicle includes a body supported by a plurality of wheels. At least one wheel of the toy vehicle is comprised of a pair of half portions coupled to a pivotal hinge at a common outer edge. One of the half portions is coupled to the...
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4602823 |
A portable collapsible wheel is provided with fabric-type material spoke elements extending between the hub and the rim for performing the spoke function. The fabric-type material bears the weight of the load supported by the wheel in su...
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4465321 |
Portable collapsible spokeless wheels are formed with a rotating circular wheel rim element defining a full circle and without a central axle, hub, or spokes. The wheel rim element is formed around its outer periphery with a land portion...
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4056285 |
A collapsible wheel rim structure adapted to support an inflated tire including a rim formed from pivotally mounted rim sections, and an internal plate support for the rim which fits into an internal track on the rim. The disc is formed ...
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3757400 |
This disclosure pertains to a novel method of manufacturing trim rings generally comprising the steps of providing a plurality of circular blanks, forming the outer portion of each said blank into an approximate trim ring configuration, ...
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2700795 |
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2682684 |
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2469629 |
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1982403 |
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1931229 |
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1887984 |
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1876968 |
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1862415 |
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1855000 |
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1811109 |
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1806676 |
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1769097 |
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1733972 |
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1680887 |
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1675371 |
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1660907 |
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1654744 |
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1643534 |
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1623372 |
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1623307 |
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1621460 |
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1597377 |
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1588159 |
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1570072 |
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1549827 |
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1541949 |
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1536503 |
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1532571 |
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1530865 |
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1526482 |
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1526194 |
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1522301 |
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1518532 |
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1516904 |
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1511713 |
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1507290 |
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1504509 |
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1500412 |
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1497052 |
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1481164 |
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1478528 |
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1476916 |
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