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FR2232805A1
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Road vehicle route recorder - employs circulating memory and alternator connected to transmission
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DE2058548A1
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Standard assembly for light display for timing devices
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OA583A
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New watch movement.
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US2924102A
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Escapement mechanism
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US2769342A
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Escapement mechanism
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GB789024A
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Improvements in escapement mechanism
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GB781719A
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Improvements in or relating to a device for permanently regulating the speed of a rotary member
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US3014339A
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Oscillation-limiting device for horological movement
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GB754718A
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Improvements in processes for enabling horological mechanisms to retain their original precision
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DE951260C
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Electric clock with a circular balance wheel driven by a periodically excited electromagnet
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GB736737A
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Improvements in and relating to electrical timepieces
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US2730634A
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Electrical balance wheel for time-keepers
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GB741693A
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Method for improving the resistance of clockworks against shocks
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US2749699A
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Electric clock starter
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GB730128A
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Improvements in electric clocks
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GB725878A
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Improvements in and relating to electrical connections
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US2713764A
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Electric watch setting mechanism
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US2768228A
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Anodes for electric cells
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GB735376A
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Improvements in and relating to Time-Piece Mechanisms
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DE1007244B
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Device for limiting the vibration amplitudes of a vibration system for electromagnetically driven balance clocks
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