Patent classifications
B
PERFORMING OPERATIONS; TRANSPORTING
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B23
MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
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B23B
TURNING; BORING
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41/00
Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor
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B23B41/003
for drilling elongated pieces, e.g. beams
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B23B41/006
the machining device being moved along a fixed workpiece
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