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PCE
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DIFF Subgroup
B23B 31/117

Retention by friction only, e.g. using springs, resilient sleeves, tapers

Introduced: January 1990

Full Title

Full titles differ between systems:

IPC:

Chucks; Expansion mandrels; Adaptations thereof for remote control > Chucks > characterised by the retaining or gripping devices or their immediate operating means > Retention by friction only, e.g. using springs, resilient sleeves, tapers

CPC:

Chucks ; Expansion mandrels; Adaptations thereof for remote control (faceplates B23Q1/50; rotary devices holding by magnetic and/or electrical force acting directly on work B23Q3/152) > Chucks > characterised by the retaining or gripping devices or their immediate operating means > Retention by friction only, e.g. using springs, resilient sleeves, tapers

Of 5 combined children, 0 exist in both systems.

5 codes are CPC-only extensions.

Child Classifications

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