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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5/00
Fine working of gems, jewels, crystals, e.g. of semiconductor material; apparatus or devices therefor
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B28D5/02
by rotary tools, e.g. drills
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B28D5/022
by cutting with discs or wheels
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B28D5/024
with the stock carried by a movable support for feeding stock into engagement with the cutting blade, e.g. stock carried by a pivoted arm or a carriage
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