The Indicating Devices Are Driven Step By Step By The Clockwork Movement [g04b 19/24b7d] Patents (Class 968/180)

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With more than one date indicating device and without data suppression [g04b 19/24b7d2] (Class 968/181)
With more than one date indicating device and with suppression of certain data [g04b 19/24b7d4] (Class 968/182)

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