Portable traffic light

Details Portable traffic light Portable traffic light

1993-08-17

1995-03-21

Peng, John K.

Communications: electrical

Traffic control indicator

Portable

116 63R, 116 63P, 340471, 340331, 340332, G08G 1095

Patent

active

054000190

ABSTRACT:
A portable traffic control device for temporary use capable of both automatic and manual operation which portable control device can be raised or lowered by hand and having a horizontal boom which folds down to a vertical position and with an adjustable and collapsible tripod stand and an electrical control circuit.

REFERENCES:
patent: 2591888 (1952-04-01), Steffen
patent: 3729706 (1973-04-01), Hein
patent: 4401969 (1983-08-01), Green et al.
patent: 4535331 (1985-08-01), Koenig
patent: 4543905 (1985-10-01), McKenney
patent: 4616225 (1986-10-01), Woudenberg

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