Chalk holder

Details Chalk holder Chalk holder

1997-02-11

1998-01-20

Thompson, Martie

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Plural or combined

D19 85, D19 35, 1906

Patent

active

D03895173

REFERENCES:
patent: D273636 (1984-05-01), Chu
patent: D278639 (1985-04-01), Cantonis
patent: D368737 (1996-04-01), Dunn et al.
patent: 883009 (1908-03-01), Gee
patent: 976687 (1910-11-01), Pickwick, Jr.
patent: 1093606 (1914-04-01), Cooley
patent: 2388361 (1945-11-01), Lynex
patent: 2680296 (1954-06-01), Cronberger
patent: 3628252 (1971-12-01), Muller et al.
patent: 3750292 (1973-08-01), Dodge
patent: 3762054 (1973-10-01), Ballard

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