Document Type and Number:
United States Patent 2675654


Publication Date:
04/20/1954
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Primary Class:
451/540
Other Classes:
249/83, 264/157, 264/275, 264/261, 264/277, 451/478, 51/297
International Classes:
B24B33/08; B24B33/00
US Patent References:
0772247
0832074
0893198
1251019
1708059Method of making window guides
1750511Process of and apparatus for molding building blocks
1962947Abrasive device
1973117Resistor molding apparatus
2073590Method of making abrasive wheels
2106205Unit abrading element
2263781Cylinder grinding device
2265377Encased abrasive element
2281420
2304984Lens mount
2349977Comb mold
2369291Molding
2509652Method of manufacturing abrasive articles
2537684Mold for building blocks