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Patent classifications
B
PERFORMING OPERATIONS; TRANSPORTING
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B23
MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
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B23P
METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
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15/00
Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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B23P15/28
cutting tools
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B23P15/48
threading tools
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