Pen and pencil cushion

Office supplies; artists and teachers materials – Equipment for writing – drawing – or for fine arts – Element or attachment

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Details

D19 54, 1906

Patent

active

D03960595

REFERENCES:
patent: D189170 (1960-11-01), Lovejoy
patent: D191555 (1961-10-01), Parker
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patent: 1879456 (1932-09-01), Parsons
patent: 4167347 (1979-09-01), Hoyle
patent: 4526547 (1985-07-01), Rusk
patent: 4689020 (1987-08-01), Rusk
patent: 4832604 (1989-05-01), Rusk
patent: 5143463 (1992-09-01), Pozil et al.

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