Pen

Details Pen Pen

1997-02-20

1998-09-08

Thompson, Martie

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Marking instrument

D19 43, D19 51, D19 56, D19 57, 1906

Patent

active

D03980243

REFERENCES:
patent: D135666 (1943-05-01), Spilka
patent: D151307 (1948-10-01), Weston
patent: 174162 (1876-02-01), Snow
patent: D277392 (1985-01-01), Salinger
patent: D287860 (1987-01-01), McShirley
patent: D326118 (1992-05-01), Black
patent: D336922 (1993-06-01), Lin
patent: D356113 (1995-03-01), Maggio
patent: 2358791 (1944-09-01), Collopy et al.
patent: 3343293 (1967-09-01), Kirklen

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