Communications: electrical – Digital comparator systems
Patent
1981-07-23
1984-05-08
Crosland, Donnie L.
Communications: electrical
Digital comparator systems
340114R, 340123, 340139, 340 84, 340 90, 40605, 40610, 40612, 40573, 116 63P, 362167, 362190, E01F 900, B60Q 100
Patent
active
044478020
ABSTRACT:
A road traffic warning light has a block-shaped housing composed of superposed housing elements. Adjacent housing elements are interconnected by a joint so that they may be folded to collapse the housing while the housing elements form a column when erected. A warning light transmitter is mounted on each housing element.
REFERENCES:
patent: 2528490 (1950-11-01), Berry
patent: 2613463 (1952-10-01), Transue
patent: 2736879 (1956-02-01), Ferguson
patent: 3049614 (1962-08-01), Eikenberry
patent: 3500465 (1970-03-01), Brekke
patent: 3999160 (1976-12-01), McDonnell
Crosland Donnie L.
Kelman Kurt
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