Diversified bookrest

Details Diversified bookrest Diversified bookrest

1988-09-23

1990-01-16

Lazarus, Ira S.

Illumination

Display backlight

Lcd backlight

2484411, A47B 2306

Patent

active

048947563

ABSTRACT:
A bookrest includes a transparent board, a mounting frame, a fluorescent lamp assembly held behind the board, a 3-dimensionally adjustable rule fixed to the board and a pen stand placed alongside one side of the board wherein one or more element(s) can be dropped out if it (they) is (are) not required when one uses the bookrest.

REFERENCES:
patent: 1279828 (1918-09-01), Brassard
patent: 1990104 (1935-02-01), Van Alstyne
patent: 2328471 (1943-08-01), Leffel
patent: 2430862 (1947-11-01), Carscallen et al.
patent: 2579740 (1951-12-01), Hiemenz
patent: 2642841 (1953-06-01), Funk
patent: 2643326 (1953-06-01), Knapp
patent: 4430797 (1984-02-01), Eder
patent: 4466593 (1984-08-01), Odenath

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