Twin-nibbed marking instrument

Description

FIG. 1 is a front elevational view of a twin-nibbed marking instrument showing my new design;

FIG. 2 is a rear elevational view;

FIG. 3 is a right side elevational view;

FIG. 4 is a left side elevational view;

FIG. 5 is a top plan view;

FIG. 6 is a bottom plan view; and

FIG. 7 is a perspective view on a reduced scale in an exploded condition.

Referenced Cited
U.S. Patent Documents
196270 October 1897 Trask
D247246 February 14, 1978 Verona
D279992 August 6, 1985 Gribb
1479996 January 1924 Lundmark
1710130 April 1929 Wiese
4600327 July 15, 1986 Guzman
Patent History
Patent number: D306316
Type: Grant
Filed: Apr 24, 1987
Date of Patent: Feb 27, 1990
Inventor: Koichi Shintani (Hananoi, Kashiwa-shi)
Primary Examiner: James R. Largen
Assistant Examiner: Martha Thompson
Attorney: Michael J. Striker
Application Number: 7/43,198