Squaring tape measure case

Details Squaring tape measure case Squaring tape measure case

1989-10-10

1990-10-30

Haroian, Harry N.

Geometrical instruments

Distance measuring

By flexible tape

33769, 33481, G01B 310

Patent

active

049659448

ABSTRACT:
A measuring rule employs a casing which permits marking of lines perpendicular to an edge of the workpiece, as well as serving to enable measuring and marking of lines at each of a range of angles thereto.

REFERENCES:
patent: 834872 (1906-10-01), Collie et al.
patent: 3008238 (1961-11-01), Ford
patent: 3568322 (1971-03-01), Showers
patent: 3577641 (1971-05-01), Smith
patent: 3824695 (1974-07-01), McClay, Jr.
patent: 4227314 (1980-10-01), Schliep
patent: 4438538 (1984-03-01), Larsen
patent: 4476635 (1984-10-01), Hart
patent: 4660292 (1987-04-01), Richardson

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