Date Indicating Devices Driven Or Freed Mechanically By A Clockwork [g04b 19/24g7] Patents (Class 968/203)

Cross-Reference Art Collections

The indicating devices are driven stepwise by the clockwork [g04b 19/24g7d] (Class 968/204)
The indicating devices are driven by successive steps by means of a charged energy source and freed at a determined moment by the clockwork [g04b 19/24g7f] (Class 968/205)
The indicating devices are driven by their own energy source which is freed at regular intervals [g04b 19/24g7g] (Class 968/206)

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