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DE1167274B
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Contact device on electrically driven watches
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GB879061A
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Electric drive device for driving a member performing mechanical oscillations
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US3061796A
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Electric drive device for driving a mechanical oscillatory system
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ES251329A1
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An electrical installation of operation (Machine-translation by Google Translate, not legally binding)
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US3046460A
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Mechanical oscillating elements for timepieces and the like, and electronic actuating means therefor
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US3058294A
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Inertia wound timepiece with magnetic coupling means
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ES249855A1
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A device for driving the seconds in electrical clocks (Machine-translation by Google Translate, not legally binding)
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GB880121A
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An electric wristlet watch
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US3058293A
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Second hand drive for timepieces
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CA608508A
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Electronically driven, mechanical oscillating element, particularly for timepieces
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CA627003A
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Electric drive device for driving a mechanically oscillatory system
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CA628969A
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Case and armband for electric wrist watch
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CA623759A
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Second hand drive for electrically driven timepieces
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