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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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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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9/00
Arc welding or cutting
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B23K9/02
Seam welding; Backing means; Inserts
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B23K9/0206
of horizontal seams in assembling vertical plates, a welding unit being adapted to travel along the upper horizontal edge of the plates
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