Pen housing

Details Pen housing Pen housing

1999-02-19

1999-11-16

Holtje, Martie K.

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Marking instrument

D19 46, D19 54, 1906

Patent

active

D04165780

REFERENCES:
patent: D187255 (1960-02-01), Sams et al.
patent: D188575 (1960-08-01), Zierhut
patent: D191342 (1961-09-01), Fuchs
patent: D228033 (1973-07-01), Jenkins
patent: D308395 (1990-06-01), Mori
patent: D368114 (1996-03-01), Hyvonen
patent: D369830 (1996-05-01), Hadtke
patent: 3297003 (1967-01-01), Benson
patent: 4217712 (1980-08-01), Koeln

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