Pen

Details Pen Pen

1993-07-30

1995-11-14

Thompson, Martie

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Marking instrument

D19 50, D19 51, D19 56

Patent

active

D03641864

REFERENCES:
patent: D145171 (1946-07-01), Green et al.
patent: D163606 (1951-06-01), Horwitch
patent: D191340 (1961-09-01), Shaw
patent: D342091 (1993-12-01), Chen
patent: D342546 (1993-12-01), Song
patent: D345577 (1994-03-01), Hohner

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