Adjustable support stand for reading material

Details Adjustable support stand for reading material Adjustable support stand for reading material

1992-12-04

1994-06-21

Holtje, Nelson C.

Office supplies; artists and teachers materials

Office equipment not elsewhere specified

Holder or file

D19 88, D 6431

Patent

active

D03480810

REFERENCES:
patent: D199828 (1964-12-01), Regan
patent: D241191 (1976-08-01), Schwartz
patent: D252578 (1979-08-01), Charowhas
patent: D320045 (1991-09-01), Mead
patent: D325745 (1992-04-01), Mead
patent: D330916 (1992-11-01), Wolfe
patent: 3790770 (1974-02-01), Stern
patent: 3905573 (1975-09-01), Davis
patent: 4243335 (1981-01-01), Singley
patent: 4431156 (1984-02-01), Mena

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