Communications: electrical – Land vehicle alarms or indicators – Internal alarm or indicator responsive to a condition of the...
Patent
1976-04-26
1978-01-10
Schaefer, Robert K.
Communications: electrical
Land vehicle alarms or indicators
Internal alarm or indicator responsive to a condition of the...
58 395, 340 51, G07C 130
Patent
active
RE0295116
ABSTRACT:
A parking meter which electrically indicates "remaining time" and which electrically operates only in the presence of a vehicle and when there is "paid-for" time on the meter. Thus, for example, unused time by one departing motorist is cancelled.
REFERENCES:
patent: 3166732 (1965-01-01), Ljungman et al.
patent: 3183411 (1965-11-01), Palfi
patent: 3300771 (1967-01-01), Wagner
patent: 3535870 (1970-10-01), Michell
patent: 3616644 (1971-11-01), Adler et al.
Miska Vit W.
Phillips C. A.
Schaefer Robert K.
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