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US3599423A
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Regulating device for a timepiece
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US3500632A
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Bearing for a timepiece pivot
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US3478509A
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Bearing for watch pivot
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US3478510A
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Bearing for watch piece pivot
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GB1171350A
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Improvements relating to Regulator Devices for Watch Movements
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GB1164380A
|
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Improvements relating to Hearing Aids for the Hard-of-Hearing.
|
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GB1154349A
|
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Improvements relating to Torsion Oscillating Devices for Watch Movements
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GB1152946A
|
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Improvements relating to Ratchet Mechanisms
|
|
GB1154348A
|
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Improvements relating to Constant-Frequency Vibrators for Time Pieces
|
|
GB1114322A
|
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Improvements relating to machines for checking the instantaneous rate of watch movements
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|
DE1548099B1
|
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Circuit arrangement for a timing machine
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GB1100216A
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Improvements relating to timepieces testers and methods
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