Attachment for framer's square

Details Attachment for framer's square Attachment for framer's square

1991-01-07

1991-08-13

Cuchlinski, Jr., William A.

Geometrical instruments

Straightedge type

Plural straightedges nonadjustably fixed at right angles

33489, 33484, 33481, 33430, 33433, B43H 710

Patent

active

050384872

ABSTRACT:
An attachment for a framer's square which permits the framer's square to be self supporting on a flat, horizontal surface. The attachment has an elongated support bar with two clips which may be inserted over a blade of a framer's square. This attachment, when inserted on the inner edge of the framer's square, facilitates the scribing of a right-angle line to a rounded edge and when placed on an outer edge, permits the square to be free standing.

REFERENCES:
patent: 768324 (1904-08-01), Breul
patent: 1237790 (1917-08-01), Kidder
patent: 1374815 (1921-04-01), Breul
patent: 1374816 (1921-04-01), Breul
patent: 4495709 (1985-01-01), Mainenti
patent: 4570345 (1986-02-01), Cattadoris

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