Signals and indicators – Street traffic – Portable
Patent
1975-06-25
1978-05-23
Queisser, Richard C.
Signals and indicators
Street traffic
Portable
40594, 40612, 40615, G09F 712
Patent
active
040904644
ABSTRACT:
A sheet of clear plastic or vinyl type material having a clear adhesive covering the entire one side thereof so to adhere to a front of a roadway sign and prevent it from becoming defaced by vandals having spray cans of paint; the sheet being readily peeled off and replaced by a fresh sheet after being excessively defaced.
REFERENCES:
patent: 1942287 (1934-01-01), Heitz
patent: 2549419 (1951-04-01), Callahan
patent: 2581762 (1952-01-01), Hesse
patent: 2596890 (1952-05-01), Dechert
patent: 2931557 (1970-04-01), Loderhose
patent: 3386199 (1968-06-01), Nagatsuka
patent: 3497969 (1970-03-01), Schwoegler
Bishopp John H.
Spector George
Queisser Richard C.
Roskos Joseph W.
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