Pen

Details Pen Pen

1977-04-07

1979-06-05

Dunkins, Bruce W.

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Marking instrument

D1906

Patent

active

D02520281

REFERENCES:
patent: D65683 (1924-09-01), Benjamin
patent: D79456 (1929-09-01), Coby
patent: D84394 (1931-06-01), Bienenstein
patent: D87611 (1932-08-01), Whitehouse
patent: D94375 (1935-01-01), Back
patent: D162213 (1951-02-01), Nelson et al.

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