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Method for measurement of duration of molten state for...

Horology: time measuring systems or devices – Time interval – Mechanical stop time type
Reexamination Certificate

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Second hand reset device for a timepiece

Horology: time measuring systems or devices – Time interval – Mechanical stop time type
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Second hand reset device for a timepiece

Horology: time measuring systems or devices – Time interval – Mechanical stop time type
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Stop watch

Horology: time measuring systems or devices – Time interval – Mechanical stop time type
Patent

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Stop watch including a time indicator

Horology: time measuring systems or devices – Time interval – Mechanical stop time type
Reexamination Certificate

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System for the control of a wheel for driving in rotation a chro

Horology: time measuring systems or devices – Time interval – Mechanical stop time type
Patent

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Time piece chronograph clockwork movement

Horology: time measuring systems or devices – Time interval – Mechanical stop time type
Reexamination Certificate

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Timepiece Hammer

Horology: time measuring systems or devices – Time interval – Mechanical stop time type
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Timepiece including a mechanism for correcting a device...

Horology: time measuring systems or devices – Time interval – Mechanical stop time type
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Timepiece with a chronograph mechanism

Horology: time measuring systems or devices – Time interval – Mechanical stop time type
Patent

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Two-state chronograph with switching means

Horology: time measuring systems or devices – Time interval – Mechanical stop time type
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Underwater electromechanical timer

Horology: time measuring systems or devices – Time interval – Mechanical stop time type
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Zero reset device for two time counters

Horology: time measuring systems or devices – Time interval – Mechanical stop time type
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Zero-resetting device for a timepiece

Horology: time measuring systems or devices – Time interval – Mechanical stop time type
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