Foldable warning device

Details Foldable warning device Foldable warning device

1976-08-26

1977-05-10

Pitrelli, John F.

Card, picture, or sign exhibiting

Display card

Having a curved display panel

40125G, G09F 2104

Patent

active

040219488

ABSTRACT:
A rectangular or trapezoidal or triangular warning sign of flexible sheet has attached near its upper corners a resilient mounting string. Each lower corner portion of the sheet is connected to one end of a string which, at the other end, is provided with a mounting hook.

REFERENCES:
patent: 1436854 (1922-11-01), Brady
patent: 1720531 (1929-07-01), Siegel
patent: 1942444 (1934-01-01), O'Connor
patent: 2527258 (1950-10-01), Kahn
patent: 3255725 (1966-06-01), Von Kreidner
patent: 3461584 (1969-08-01), Wilson
patent: 3594938 (1971-07-01), Mosch
patent: 3670438 (1972-06-01), Carroll

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