Corner level
Description
FIG. 1 is a front perspective view of a corner level showing my new design;
FIG. 2 is a rear perspective view thereof;
FIG. 3 is a right side elevational view thereof;
FIG. 4 is a top plan view thereof;
FIG. 5 is a bottom plan view thereof.
Referenced Cited
U.S. Patent Documents
| 1644456 | October 1927 | Winter |
| 2624953 | January 1953 | Newcomb |
| 2906031 | September 1959 | Rice |
| 3303569 | February 1967 | Wyatt |
| 3545091 | December 1970 | Sebastiani |
| 3820249 | June 1974 | Stone |
| 4168578 | September 25, 1979 | VanderWerf |
Patent History
Patent number: D257330
Type: Grant
Filed: Dec 28, 1978
Date of Patent: Oct 14, 1980
Assignee: Vy-Dawn, Inc. (San Rafael, CA)
Inventor: Robert H. VanderWerf (Redding, CA)
Primary Examiner: Nelson C. Holtje
Attorney: Neil F. Markva
Application Number: 5/973,974
Type: Grant
Filed: Dec 28, 1978
Date of Patent: Oct 14, 1980
Assignee: Vy-Dawn, Inc. (San Rafael, CA)
Inventor: Robert H. VanderWerf (Redding, CA)
Primary Examiner: Nelson C. Holtje
Attorney: Neil F. Markva
Application Number: 5/973,974
Classifications