Adjustable carpenter square

Details Adjustable carpenter square Adjustable carpenter square

1985-02-28

1986-01-07

Haroian, Harry N.

Geometrical instruments

Straightedge type

Square and pivoted straightedge

33465, 33472, 33497, B43L 706

Patent

active

045626499

ABSTRACT:
An adjustable carpenter square for use in determining the relative angles between two predetermined points defined by a pair of longitudinal extensions pivotally attached together at one end.

REFERENCES:
patent: 397128 (1889-02-01), Hester
patent: 843459 (1907-02-01), Humes
patent: 1086545 (1914-02-01), Meister et al.
patent: 1139648 (1915-05-01), Demmer
patent: 2972816 (1961-02-01), Richardson
patent: 3065546 (1962-11-01), Brocklander

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