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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31/00
Chucks; Expansion mandrels; Adaptations thereof for remote control
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B23B31/10
characterised by the retaining or gripping devices or their immediate operating means
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B23B31/117
Retention by friction only, e.g. using springs, resilient sleeves, tapers
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B23B31/1171
not used, see subgroups and B23B31/117
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