CPC Main Group
G04B 3/00 Normal winding of clockworks by hand or mechanically; Winding up several mainsprings or driving weights simultaneously
10 direct subcodes
Child Classifications
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- G04B 3/02 Removably-mounted keys or the like
- G04B 3/04 Rigidly-mounted keys, knobs or crowns
- G04B 3/06 Keys or the like with means preventing overwinding (protecting devices arranged in, or attached to, the barrel G04B1/20; in connection with automatic winding devices G04B1/24 )
- G04B 3/08 by parts of the cases
- G04B 3/12 by mechanical means, e.g. pneumatic motor (winding up with electric or electromechanical means G04C )