Supports – Easel; book – copy or music score holder – With adjustable inclination
Patent
1984-12-19
1986-11-25
Britts, Ramon S.
Supports
Easel; book, copy or music score holder
With adjustable inclination
2482921, 2483721, 403146, 403229, A47G 124
Patent
active
046244344
ABSTRACT:
A tilt control apparatus comprises a tiltable display assembly pivotally coupled to a base support member through a hinge structure including a torsion spring and friction producing means which operate to permit the display assembly to be tilted to and held securely at any desired angle.
REFERENCES:
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patent: 3593952 (1971-07-01), Smith
patent: 3845928 (1974-11-01), Barrett et al.
patent: 4310136 (1982-01-01), Mooney
patent: 4395010 (1983-07-01), Helgeland et al.
patent: 4437638 (1984-03-01), Scheibenpflug
Lake, Jr. Ralph J.
Sudol George A.
Britts Ramon S.
Burroughs Corporation
Chotkowski Karen J.
Peterson Kevin R.
Starr Mark T.
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