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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11/00 Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for
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B23P11/02 by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits
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B23P11/025 by using heat or cold
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