Multipurpose square

Details Multipurpose square Multipurpose square

1996-05-07

1998-03-17

Will, Thomas B.

Geometrical instruments

Straightedge type

Square and fixed straightedge

33476, 33481, B43L 7027

Patent

active

057273251

ABSTRACT:
A multipurpose square (20A) (20B) which performs and simplifies many of the tasks previously accomplished by the use of multiple tools including the framing square, try square, combination square, layout square, and protractor. The square includes indicia in calibrated scales for rafter, angle, and linear measurements. The square has a profile which facilitates the rapid marking of layouts for various standard dimensional construction materials as well as marking cuts for stair stringers and bond timbers. The square is configured to allow it to be "holstered" or carried in the pockets of standard tool aprons so as to be readily accessible to the tradesman.

REFERENCES:
patent: 1135259 (1915-04-01), Cokely
patent: 1255429 (1918-02-01), Killion
patent: 4404753 (1983-09-01), Klok
patent: 4420891 (1983-12-01), Orem
patent: 4513510 (1985-04-01), Swanson
patent: 4574492 (1986-03-01), Miller
patent: 4736525 (1988-04-01), Deason
patent: 4742619 (1988-05-01), Swanson
patent: 5090129 (1992-02-01), Cunningham
patent: 5170568 (1992-12-01), Wright
patent: 5239762 (1993-08-01), Grizzell
patent: 5253426 (1993-10-01), Mosbrucker
patent: 5456015 (1995-10-01), Butcher et al.

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