Bubble blowing pen cap

Details Bubble blowing pen cap Bubble blowing pen cap

1999-09-28

2000-04-25

Holtje, Martie K.

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Element or attachment

D19 46, D21402, 1906

Patent

active

D04235835

REFERENCES:
patent: D235030 (1975-04-01), Ziff
patent: D335140 (1993-04-01), Walker
patent: D336659 (1993-06-01), Lin
patent: D354689 (1995-01-01), Figard
patent: D357500 (1995-04-01), Mutterperl
patent: 2398513 (1946-04-01), Bradley
patent: 2591874 (1952-04-01), Richie
patent: 2720723 (1955-10-01), Peretti
patent: 3064387 (1962-11-01), Campbell
patent: 5653620 (1997-08-01), Lin

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