Patent classifications
B
PERFORMING OPERATIONS; TRANSPORTING
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B28
WORKING CEMENT, CLAY, OR STONE
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B28D
WORKING STONE OR STONE-LIKE MATERIALS
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7/00
Accessories specially adapted for use with machines or devices of the preceding groups
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B28D7/04
for supporting or holding work; or conveying or discharging work
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B28D7/043
the supporting or holding device being angularly adjustable
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