CPC Subgroup
G04B 3/045 Full Title
Normal winding of clockworks by hand or mechanically; Winding up several mainsprings or driving weights simultaneously > Rigidly-mounted keys, knobs or crowns
G04B 3/045 Normal winding of clockworks by hand or mechanically; Winding up several mainsprings or driving weights simultaneously > Rigidly-mounted keys, knobs or crowns