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Method for inspecting the running of a timepiece and timepiece adapted for such method
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Push-button for watchmaking piece
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Apparatus for determining the degree of gas impermeability for watch cases and like articles
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Watch movement with off=centre third wheel - allows dismantling of minute drive without disturbing third wheel assembly
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Balance wheel assembly and method of manufacture thereof
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Electric instruments adapted to utilise energy cells
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METHOD OF FASTENING A CLOCK SPRING TO A SPIRAL ROLLER, DEVICE FOR CARRYING OUT THE PROCESS AND SPIRAL ROLLER USED IN THE PROCESS
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DEVICE FOR OPTICAL ALIGNMENT AND ADJUSTMENT FOR LASER
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Self-lubrication bearing member
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Oscillating harological motor
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MEASURING METHOD AND MEASURING DEVICE FOR IMPLEMENTING THE SAME
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CALENDAR WATCH
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Mechanism for driving and correcting a data disc in a day-date timepiece
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Protective casing for a wrist watch
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Motion transformer
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Motion transformer
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Apparatus for testing for leakage
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Motion transformer
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Motion transformer
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Motion transformer
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