Center punch guide for piping

Description

FIG. 1 is a front perspective view of a center punch guide for piping showing my new design;

FIG. 2 is a front elevational view;

FIG. 3 is a rear elevational view;

FIG. 4 is a top plan view;

FIG. 5 is a bottom view; and

FIG. 6 is a right side elevational view, the left side being a mirror image thereof.

Referenced Cited
U.S. Patent Documents
D141088 May 1945 Boyce
D192302 February 1962 Fulton
657443 September 1900 Newton
2667703 February 1954 Zumkeller
3661469 May 1972 Leff
Patent History
Patent number: D313189
Type: Grant
Filed: Jan 11, 1988
Date of Patent: Dec 25, 1990
Inventor: Timothy Walsh (Schiller Park, IL)
Primary Examiner: Nelson C. Holtje
Assistant Examiner: Gary D. Watson
Law Firm: McCaleb, Lucas & Brugman
Application Number: 7/142,845
Classifications
Current U.S. Class: Combined (D10/62)