Electrical time reminder for various purposes
United States Patent 2553482
US Patent References:
Electric alarm clock
- - 1542275

Alarm clock
- - 2020388

Alarm clock and switch
- - 2421986


Inventors:
Smith, Roland L.
Publication Date:
05/15/1951
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Assignee:
Smith, Roland L.
Primary Class:
368/109
Other Classes:
340/326, 116/DIG.006, 968/816
International Classes:
G04F3/08; G04F3/00