Patent classifications
B
PERFORMING OPERATIONS; TRANSPORTING
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B23
MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
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B23K
SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
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37/00
Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass
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B23K37/04
for holding or positioning work
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B23K37/053
aligning cylindrical work; Clamping devices therefor
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B23K37/0536
for maintaining flanges on tubes
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