Alarm device for electronic watches

Horology: time measuring systems or devices – With calendar indicator – Electro-optical

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Details

368 73, 368 67, G04B 1924, G04B 2302

Patent

active

043847900

ABSTRACT:
An alarm device for electronic watches has a memory for storing data representing a specified date. When the user operates a switch on that day, the device sounds an alarm to tell the user the specified date has arrived.

REFERENCES:
patent: 3813533 (1974-05-01), Cone
patent: 3999050 (1976-12-01), Pitroda
patent: 4005571 (1977-02-01), Wolff
patent: 4093992 (1978-06-01), Kawamura et al.
patent: 4104865 (1978-08-01), Sasaki
patent: 4150535 (1979-04-01), Morokawa et al.
patent: 4162610 (1979-07-01), Levine

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