Framing tool

Details Framing tool Framing tool

2007-06-07

2009-06-16

Fulton, Christopher W (Department: 2841)

Geometrical instruments

Straightedge type

Multiplane angularly adjustable

C033S418000, C033S465000, C033S478000, C033S529000, C033S535000

Reexamination Certificate

active

07546687

ABSTRACT:
Apparatus using two hinged L-shaped squares to determine perpendicular with respect to a plane. Placing the apparatus against a plane with the squares offset angularly with respect to each other and placing an object to be secured to a plane adjacent to the hinge within fins parallel to the hinge permits securing the object perpendicular to the plane with one hand while holding the apparatus and object with the other hand.

REFERENCES:
patent: 292017 (1884-01-01), Jones
patent: 735201 (1903-08-01), Blandin
patent: 1553229 (1925-09-01), Fraser
patent: 1648266 (1927-11-01), Grass
patent: 3670418 (1972-06-01), Hamilton, Jr.
patent: 5452522 (1995-09-01), Kook et al.
patent: 5524353 (1996-06-01), Fink

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