Pictoral communication cards

Details Pictoral communication cards Pictoral communication cards

1999-03-25

2000-01-04

Holtje, Martie K.

Office supplies; artists and teachers materials

Teaching material

D18 27, D20 40, 1907

Patent

active

D04185420

REFERENCES:
patent: D088709 (1932-12-01), Hayes
patent: D104935 (1937-06-01), Briggs
patent: D177087 (1956-03-01), Deschatre
patent: D197900 (1964-04-01), Hvizdash
patent: D219001 (1970-10-01), Hardy
patent: D281081 (1985-10-01), Zwissler et al.
Symbol Sourcebook .COPYRGT.1972, p. 65 see set of symbols for shops & services, 1972.
Symbol Sourcebook .COPYRGT.1972, p. 36 see set of symbols for accomodations & travel, 1972.

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