For Complete Clockworks [g04d 7/12b2] Patents and Patent Applications (Class 968/771) - Justia Patents Search

For Complete Clockworks [g04d 7/12b2] Patents (Class 968/771)

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With recording, e.g., vibrograph, etc. [g04d 7/12b2b] (Class 968/772)

Devices for facilitating the reading or the interpretation of the recording [G04D 7/12B2B2] (Class 968/773)

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