Structural component made of hard material for a wristwatch
First Claim
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1. A structural component made of hard material for a wristwatch, including a hole whose cylindrical wall includes a threading which is integral with said component, wherein said leading is obtained without removing material and wherein said structural component is a winding crown.
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Abstract
A structural component made of hard material for a wristwatch, characterized in that it includes a hole fitted with an inner threading which is integral with said component, said threading being directly obtained by injection and thus without removing any material of said component for example by machining.
72 Citations
5 Claims
- 1. A structural component made of hard material for a wristwatch, including a hole whose cylindrical wall includes a threading which is integral with said component, wherein said leading is obtained without removing material and wherein said structural component is a winding crown.
Specification
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Current AssigneeMontres Rado S.A., Comadur SA (The Swatch Group AG)
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Original AssigneeMontres Rado S.A., Comadur SA (The Swatch Group AG)
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InventorsBach, Michael, Bucher, Olivier, Guerry, Christophe
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Primary Examiner(s)Miska, Vit
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Application NumberUS09/314,950Time in Patent Office1,328 DaysField of Search368/88, 368/276, 368/280, 368/308, 368/319, 368/309, 368/310US Class Current368/280CPC Class CodesG04B 3/041 Construction of crowns for ...G04B 37/22 Materials or processes of m...G04B 37/223 metallic cases coated with ...G04B 37/225 Non-metallic casesG04D 3/0012 for parts of the winding-up...
