Grinding instrument
Description
FIG. 1 is a top plan view of a grinding instrument showing my new design;
FIG. 2 is a front elevational view;
FIG. 3 is a right side elevational view; and,
FIG. 4 is a perspective view thereof.
The bottom plan view being flat and unadorned.
Referenced Cited
U.S. Patent Documents
D92378 | May 1934 | Swingle |
2350098 | May 1944 | Decker |
4920702 | May 1, 1990 | Kloss et al. |
Patent History
Patent number: D331585
Type: Grant
Filed: Jun 6, 1990
Date of Patent: Dec 8, 1992
Inventor: Robert Wolff (5446 Engelin)
Primary Examiner: Donald P. Walsh
Assistant Examiner: Antoine D. Davis
Law Firm: Antonelli, Terry, Stout & Kraus
Application Number: 7/533,908
Type: Grant
Filed: Jun 6, 1990
Date of Patent: Dec 8, 1992
Inventor: Robert Wolff (5446 Engelin)
Primary Examiner: Donald P. Walsh
Assistant Examiner: Antoine D. Davis
Law Firm: Antonelli, Terry, Stout & Kraus
Application Number: 7/533,908
Classifications