Compensation Of Changes In The Motive Power Of The Mainspring (by Mechanical Shaping Of The Mainspring Subclass 10; Automatic Regulation Of The Pendulum Subclass 115; Of The Regulator Subclass 211) [g04b 1/22] Patents (Class 968/18)

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With the aid of an interposed power accumulator (secondary spring) which is always tensioned (winding up several mainsprings or driving weights simultaneously subclass 28) [g04b 1/22b] (Class 968/19)

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