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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5/00
Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor
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B23B5/36
for turning specially-shaped surfaces by making use of relative movement of the tool and work produced by geometrical mechanisms, i.e. forming-lathes
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B23B5/38
for turning conical surfaces inside or outside, e.g. taper pins
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