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B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
B23B—TURNING; BORING
B23B7/00—Automatic or semi-automatic turning-machines with a single working-spindle, e.g. controlled by cams; Equipment therefor; Features common to automatic and semi-automatic turning-machines with one or more working-spindles
B23B7/12—Automatic or semi-automatic machines for turning of workpieces
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FR460358D1913-05-151913-07-11Perfectionnements apportés aux tours automatiques à tourelle
ExpiredFR460358A
(fr)