Reusable marking system

Card – picture – or sign exhibiting – Signs

Patent

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Details

434408, 106 23, 106 325, G09F 700

Patent

active

047221453

ABSTRACT:
A reusable marking system comprising a high impact styrene plastic marking surface and a specially formulated water soluble marking ink. The ink is carried in a felt tip marker and can be removed from the marking surface using a damp wiper. The marking surface can be permanently marked using screen printing techniques to provide suitable permanent messages or to delineate areas for non-permanent markings.

REFERENCES:
patent: 1970697 (1934-08-01), Hammitt
patent: 3069790 (1962-12-01), Oswald
patent: 4267088 (1981-05-01), Kempf
patent: 4449310 (1984-05-01), Kline
"The Sporting Goods Dealer", Mar. 1979, p. 193.
"Playthings", Feb. 10, 1960, p. 195.
"Dupont Magazine", vol. 65, No. 3, May/Jun. 1971, pp. 7-9.

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