Four way corner level

- Vy-Dawn, Inc.

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Description

FIG. 1 is a front perspective view of a four way corner level showing my new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a left side perspective view thereof;

FIG. 4 is a right side perspective view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D189590 January 1961 White
D238153 December 1975 Johnson
1210370 December 1916 Dvorak
2286669 June 1942 Carr
2906031 September 1959 Rice
3303569 February 1967 Wyatt
3545091 December 1970 Sebastiani
3820249 June 1974 Stone
Patent History
Patent number: D253581
Type: Grant
Filed: Jun 30, 1977
Date of Patent: Dec 4, 1979
Assignee: Vy-Dawn, Inc. (San Rafael, CA)
Inventor: Robert H. Vanderwerf (San Rafael, CA)
Primary Examiner: Nelson C. Holtje
Attorney: Neil F. Markva
Application Number: 5/811,538
Classifications
Current U.S. Class: Spirit Level (D10/69)
International Classification: D1004;