G04B 5/20

Automatic winding up: by movements of other objects

Official title: 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

G04B5/20 (Automatic winding up: by movements of other objects) appears on 7 US grants and 6 published applications in this corpus.

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7
Published applications
6
Assignees
5
Inventors
24
Latest grant
3 Nov 2020

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