Patent classifications
B
PERFORMING OPERATIONS; TRANSPORTING
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B23
MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
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B23G
THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
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7/00
Forming thread by means of tools similar both in form and in manner of use to thread-cutting tools, but without removing any material
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B23G7/02
Tools for this purpose
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