Pen

Details Pen Pen

1999-07-02

2000-04-04

Holtje, Martie K.

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Marking instrument

D19 51, D19 43, 1906

Patent

active

D04223101

REFERENCES:
patent: D026395 (1896-12-01), Kraus
patent: D185331 (1959-05-01), Tannenbaum
patent: D246530 (1977-11-01), Zeischegg
patent: D303810 (1989-10-01), Benken
patent: D368114 (1996-03-01), Hyvonen
patent: 1307195 (1919-06-01), Gardner
patent: 1736430 (1929-11-01), Deli
patent: 2391392 (1945-12-01), Coffin

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