Parallel straightedge

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Description

FIG. 1 is a top and right front perspective view of a parallel straightedge showing my new design;

FIG. 2 is a top plan view thereof, the bottom being flat, plain and unornamented;

FIG. 3 is a right side elevational view thereof, the left side being a mirror image thereto;

FIG. 4 is a front elevational view thereof, the rear being a mirror image thereto.

The broken-line showings of a drafting board in FIGS. 1-4 are environmental only and form no part of the claimed design.

Referenced Cited
U.S. Patent Documents
D139700 December 1944 Truhon
D241019 August 1976 Chadwick
D254313 February 26, 1980 Dunmore
1667150 April 1928 Griffith
2129457 September 1938 Von Zimmermann
3911585 October 1975 McNeil
Other references
  • The Frederick Post Co. Cat., #18, .COPYRGT.1936-p. 211-Parallel Rule.
Patent History
Patent number: D292296
Type: Grant
Filed: May 13, 1985
Date of Patent: Oct 13, 1987
Inventor: Russell J. Wood (Lanesboro, MA)
Primary Examiner: Nelson C. Holtje
Application Number: 6/733,059