Multi-headed writing instrument

Details Multi-headed writing instrument Multi-headed writing instrument

1998-03-12

1998-12-29

Holtje, Martie K.

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Plural or combined

D19 49, D19 51, 1906

Patent

active

D04033558

REFERENCES:
patent: D144402 (1946-04-01), Lijoic, Jr.
patent: D144621 (1946-05-01), Kahn
patent: D234226 (1975-01-01), Malm et al.
patent: D300087 (1989-03-01), Henderson
patent: D307602 (1990-05-01), Lee
patent: D319467 (1991-08-01), Clowes
patent: D344130 (1994-02-01), Craig
patent: D363740 (1995-10-01), Quimby
patent: 645487 (1900-03-01), Ogle
patent: 1977527 (1934-10-01), Pahle
patent: 2370414 (1945-02-01), Ostrander
patent: 2510302 (1950-06-01), White

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