Automobile detecting and announcing device

Details Automobile detecting and announcing device Automobile detecting and announcing device

1975-07-25

1976-04-13

Yusko, Donald J.

Communications: electrical

Selective

Having indication or alarm

340 51, 360 12, G08G 102, G08G 109

Patent

active

039507254

ABSTRACT:
Apparatus for detection of the presence of an automobile and its direction of movement into and out of a specific area and activating a reproducing system to provide audible and/or visual information to the driver and then resetting the system upon completion of the reproduction.

REFERENCES:
patent: 2325435 (1943-07-01), Sykora
patent: 3126522 (1964-03-01), Fieser
patent: 3319222 (1967-05-01), Grant et al.
patent: 3409745 (1968-11-01), Kock
patent: 3431553 (1969-03-01), Osmond
patent: 3588808 (1971-06-01), Gustus

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