Combined twin-nibbed marker and level

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Description

FIG. 1 is a perspective view of a combined twin-nibbed marker and level showing my new design;

FIG. 2 is a front elevational view;

FIG. 3 is a side elevational view, the opposite side and rear views being identical thereto; and

FIG. 4 is an end elevational view, the opposite end being a mirror image thereof.

Referenced Cited
U.S. Patent Documents
D92705 July 1934 Deli
D126555 April 1941 Gurtov
D159125 June 1950 Wuestman
D277873 March 5, 1985 Kin
D279992 August 6, 1985 Gribb
D286163 October 14, 1986 Shintani
D306316 February 27, 1990 Shintani
D306873 March 27, 1990 Yazaki
D324542 March 10, 1992 Lin
Patent History
Patent number: D330910
Type: Grant
Filed: Jan 16, 1991
Date of Patent: Nov 10, 1992
Assignee: Edwin E. Warburton (Fulton, MD)
Inventor: Edwin E. Warburton (Fulton, MD)
Primary Examiner: Nelson C. Holtje
Assistant Examiner: Martha Thompson
Application Number: 7/641,558