Bubble blowing pen cap

Details Bubble blowing pen cap Bubble blowing pen cap

1998-09-04

2000-04-25

Holtje, Martie K.

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Element or attachment

D19 42, D19 46, D21402, 1906

Patent

active

D04235827

REFERENCES:
patent: D97242 (1935-10-01), Rubenstein
patent: D136581 (1943-11-01), Hagopian
patent: D164548 (1951-09-01), Blish
patent: D235030 (1975-04-01), Ziff
patent: D277392 (1985-01-01), Salinger
patent: D287860 (1987-01-01), McShirley
patent: D317183 (1991-05-01), Neuroth et al.
patent: D357500 (1995-04-01), Mutterperl
patent: 2591874 (1952-04-01), Ritchie
patent: 2739413 (1956-03-01), Peretti
patent: 3064387 (1962-11-01), Campbell
patent: 5653620 (1997-08-01), Lin

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