Pen

Details Pen Pen

1986-07-29

1989-11-14

Dunkins, Bruce W.

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Marking instrument

D19 35, D19 41

Patent

active

D03046010

REFERENCES:
patent: D103403 (1937-03-01), Iannelli
patent: D153905 (1949-05-01), Sager
patent: D154034 (1949-06-01), Fischer
patent: D177369 (1956-04-01), Ensign
patent: D242632 (1976-12-01), McPherson
patent: D279993 (1985-08-01), Oka
patent: 3856420 (1974-12-01), Oltmann

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