By Discs (by Drums Subclass 573) [g04c 17/00s] Patents and Patent Applications (Class 968/570) - Justia Patents Search

By Discs (by Drums Subclass 573) [g04c 17/00s] Patents (Class 968/570)

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With date indication [g04c 17/00s2] (Class 968/571)

Electromagnetically driven, e.g., intermittently, etc. (clocks incorporating stepping motor subclass 490) [G04C 17/00S2B] (Class 968/572)

There are no patents to show for this class.