CPC Subgroup
G04B 5/20 by movements of other objects, e.g. by opening a hand-bag, by opening a case, by opening a door; Winding up by wind power
Full Title
Automatic winding up > by movements of other objects, e.g. by opening a hand-bag, by opening a case, by opening a door; Winding up by wind power
2 direct subcodes
Child Classifications
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