Interchangeable casing wrist watch
United States Patent 2605604
US Patent References:
Watch adapter
- - 2065657


Inventors:
Lavigna, Marcel G.
Publication Date:
08/05/1952
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Assignee:
Lavigna, Marcel G.
Primary Class:
Other Classes:
968/409
International Classes:
G04B47/04; G04B47/00
Foreign References:
GB191420696A
CH42578A
FR439336A
GB532616A