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WATCH MOVEMENT INCLUDING ALARM MECHANISM
   
Document Number
US Patent 3732686
Issued Date
May 15, 1973
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Abstract
A watch movement comprising an alarm mechanism provided with a vibrating membrane located above the bottom plate, characterized in that the vibrating membrane is an annular plate resting on a supporting ring which is fastened to the bottom plate and pressing against the dial.
Drawing
WATCH MOVEMENT INCLUDING ALARM MECHANISM - US Patent 3732686 Drawing
Drawing from US Patent 3732686
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Number of Claims:
8
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Owner
A. Schild S.A. (Grenchen (Canton of Soleure),
Published
May 15, 1973
Application Number
05/279,298
Filed
August 10, 1972
US Classification
368/37   368/236 368/72 968/242
Int'l Classification
G04B   23/12   (20060101)   G04B   23/00   (20060101)  
USPTO Field of Search
58/16   58/17   58/18   58/19   58/20   58/21   58/22.9   58/57.5   58/58  
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