Pen

Details Pen Pen

1978-01-23

1979-08-28

Stearman, Joel

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Marking instrument

D1906

Patent

active

D02527570

REFERENCES:
patent: D41375 (1911-05-01), Grate
patent: D181861 (1958-01-01), Lamb
patent: D240495 (1976-07-01), Koppe
Institutions, vol. 69, Jul.-Sep. 1971, Aug. 15, p. 85.

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