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US3252280A
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Waterproof watch
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US3224183A
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Electrically actuated time integrating device
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Magnetic speed regulator
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Electromotive vibrator and oscillator system
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Self-winding watch and like device
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US3171992A
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Electromagnet type oscillating motor
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Oscillating balance with hairspring and expansion limiting means
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US3026734A
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Electrically-powered time devices
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Electrically-powered time devices
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Crystal tool for watches and like devices
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Replaceable end links for expansion watch bands
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Electromotive vibrator and oscillator systems
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GB877564A
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Improvements in or relating to horological balances
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Balance with adjustable moment of inertia
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Stacked cell assembly
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Art of terminal structures for electrical energy cells
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Electromotive vibrator and oscillator systems
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US2825201A
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Bracelet linkage with detachable pivotal connection
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US2922764A
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Ricinoleyl lubricants
|
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US2762191A
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Expansible bracelet with detachable tongue connected links
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