Geometrical instruments – Straight-line light ray type – Multisight line
Patent
1981-10-26
1983-04-12
Haroian, Harry N.
Geometrical instruments
Straight-line light ray type
Multisight line
454 10, B43L 1316
Patent
active
043793649
ABSTRACT:
A device for use by artists and others to aid in freehand sketching, comprising generally a base, a transparent sketching surface in an upright position and a chin rest less than an arm's length away from the sketching surface, said base being supported by nesting folding legs, or being supported by the artists' knees, when the artist is in a sitting position, wherein the artist views the object to be sketched through the sketching surface and sketches directly on the sketching surface.
REFERENCES:
patent: 9409 (1852-11-01), Richter
patent: 254178 (1982-02-01), Lith
patent: 2188237 (1940-01-01), Weaver
patent: 3678589 (1972-07-01), Baier
Haroian Harry N.
Keller Walter R.
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