Communications: electrical – Land vehicle alarms or indicators – Internal alarm or indicator responsive to a condition of the...
Patent
1977-06-29
1979-01-16
Hix, L. T.
Communications: electrical
Land vehicle alarms or indicators
Internal alarm or indicator responsive to a condition of the...
354238, 3403091, G03B 1718, G08B 538
Patent
active
041346602
ABSTRACT:
A self timer of a camera in particular a self timer for digitally controlling self timing has an indicating element responsive to pulses from a standard pulse generator to be energized intermittently and a control means for varying the period of energization and deenergization of the indicating element after a predetermined time interval. Thus, it being made possible for the photographer to know the expiration time of the self timer.
REFERENCES:
patent: 3223013 (1965-12-01), Rentschler
patent: 3726200 (1973-04-01), Ogiso et al.
patent: 4038675 (1977-07-01), Kitai et al.
Ito Tadashi
Murakami Hiroyasu
Sakurada Nobuaki
Shinoda Nobuhiko
Suzuki Masayuki
Canon Kabushiki Kaisha
Hix L. T,.
Perkey William B.
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