Ruler assembly

Details Ruler assembly Ruler assembly

1996-05-09

1998-06-23

Fulton, Christopher W.

Geometrical instruments

Straightedge type

Plural straightedges nonadjustably fixed at right angles

33 1B, 33 1BB, G01B 514, G01B 310

Patent

active

057687919

ABSTRACT:
A ruler assembly comprises a transparent overlay, an L-shaped flange having transverse and parallel legs, and fasteners for attaching the overlay to the flange. The overlay is attached to the parallel leg of the flange such that the edge of the overlay along its length is adjacent to the transverse leg of the flange.

REFERENCES:
patent: 1214785 (1917-02-01), Hill
patent: 2375427 (1945-05-01), Mannino
patent: 2992484 (1961-07-01), May
patent: 3842506 (1974-10-01), Pascua et al.
patent: 4422241 (1983-12-01), Meeker
patent: 4475288 (1984-10-01), Pellegrom
patent: 4607433 (1986-08-01), Meeker

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