Ruler template for computer keyboard

Details Ruler template for computer keyboard Ruler template for computer keyboard

1991-10-03

1992-08-11

Will, Thomas B.

Geometrical instruments

Straightedge type

Rules

33494, D14114, G01B 310

Patent

active

051367874

ABSTRACT:
There is disclosed a template for a computer keyboard which provides markings constituting a measurement scale. The template provides an aperture therein to thereby permit keys of the keyboard to pass therethrough. The measurement scale has units of measurement which may be in inches, centimeters, millimeters, Pica units, point sizes and Agate lines.

REFERENCES:
patent: D195278 (1963-05-01), DiPrimio
patent: 204601 (1878-06-01), Perris
patent: D273094 (1984-03-01), Clausen et al.
patent: D294706 (1988-03-01), Duffin, II
patent: 443652 (1890-12-01), Jewell
patent: 1528992 (1925-03-01), Rose
patent: 3412470 (1968-11-01), Williams et al.
patent: 4060163 (1977-11-01), Willingham
patent: 4935888 (1990-06-01), Heston et al.

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