Electric watch
United States Patent 2978862
US Patent References:
/0363959.html
- - 0363959

/1175610.html
- - 1175610

Watch
- - 2008338


Inventors:
Helmut, Epperlein
Publication Date:
04/11/1961
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Assignee:
HAMILTON WATCH CO
Primary Class:
368/204
Other Classes:
368/309, 429/178, 968/470, 968/452
International Classes:
G04C3/00; G04C3/06