Combination layout tool and square

Details Combination layout tool and square Combination layout tool and square

1983-02-15

1986-03-11

Haroian, Harry N.

Geometrical instruments

Straightedge type

Square and sliding nonpivotal straightedge

33464, 33429, 33481, 33476, B43L 700

Patent

active

045744920

ABSTRACT:
A combination device including a layout tool having a rectangular plate and a rectangular endpiece; and a square adaptor having an attachment plate and a ruler assembly. The layout tool is provided with a number of slots and apertures which allow a construction worker to make quick, standard measurements. The square adaptor includes a pivotable ruler which can be aligned parallel to or perpendicular to the longitudinal edges of the layout tool.

REFERENCES:
patent: 387966 (1888-08-01), Beckwith
patent: 778521 (1904-12-01), Wheat
patent: 1135259 (1915-04-01), Cokely
patent: 1257683 (1918-02-01), Defenbaugh
patent: 1560417 (1925-11-01), Dreschler
patent: 1732906 (1929-10-01), Morton
patent: 2594193 (1952-04-01), Mendes
patent: 2646626 (1953-07-01), Palin
patent: 3169320 (1965-02-01), Currie
patent: 3439426 (1969-04-01), Wilson
patent: 3456353 (1969-07-01), Iams
patent: 4361964 (1982-12-01), Hennessee
patent: 4380124 (1983-04-01), Smith

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