Portable support stand for reading material

Details Portable support stand for reading material Portable support stand for reading material

1990-06-26

1992-07-28

Walsh, Donald P.

Office supplies; artists and teachers materials

Office equipment not elsewhere specified

Holder or file

D 6419, D19 90

Patent

active

D03283143

REFERENCES:
patent: D192566 (1962-04-01), Perry
patent: D248523 (1978-07-01), Goldstein
patent: D253740 (1979-12-01), Dubler
patent: 284228 (1883-09-01), Pickering
patent: 2012551 (1935-08-01), Steen
patent: 2224530 (1940-12-01), Weinstein
patent: 2373617 (1945-04-01), Tiryakian
patent: 2490356 (1949-12-01), Hummel
patent: 3097444 (1963-07-01), Steiner
patent: 4544123 (1985-10-01), Peacock
patent: 4607817 (1986-08-01), Aquino
patent: 4709895 (1987-12-01), Mardak
patent: 4886231 (1989-12-01), Doerksen
patent: 4991812 (1991-02-01), MacEwan

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