Bulletin board

Office supplies; artists and teachers materials – Equipment for writing – drawing – or for fine arts – Writing or drawing surface – e.g. – blackboard – drawing board,...

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Details

D19 88, D20 42, D 2717

Patent

active

D03606511

REFERENCES:
patent: D155036 (1949-08-01), Rielly
patent: D158527 (1950-05-01), Steele
patent: D186593 (1959-11-01), Warnberg
patent: D268936 (1983-05-01), Berinson
patent: D291454 (1987-08-01), Broadfoot
patent: D330225 (1992-10-01), Cohen
patent: D340081 (1993-10-01), Pannkuk
patent: D346267 (1994-04-01), Kennedy
patent: 3736597 (1973-06-01), Artz

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