Foldable book rest

Details Foldable book rest Foldable book rest

1994-05-06

1996-02-27

Douglas, Alan P.

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Marking instrument

D19 91

Patent

active

D03673774

REFERENCES:
patent: D137164 (1944-02-01), Peck
patent: D251647 (1979-04-01), Valien
patent: D260589 (1981-09-01), O'Brien
patent: D268108 (1983-03-01), Stearns et al.
patent: D325679 (1992-04-01), O'Mealy et al.
patent: D358271 (1995-05-01), Leveen et al.
patent: D358611 (1995-05-01), Dainoff et al.
patent: 2691238 (1954-10-01), Svatos
patent: 3095665 (1963-07-01), Killen
patent: 3095666 (1963-07-01), Killen
patent: 3980267 (1976-09-01), Palmer
patent: 4703910 (1987-11-01), Ross

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