Motorized pen

Details Motorized pen Motorized pen

1991-06-03

1992-12-15

Holtje, Nelson C.

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Marking instrument

D19 41, D19 49, D19 53, 401195

Patent

active

D03317781

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patent: 4599799 (1986-07-01), Lopez

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