Leveling instrument

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Description

FIG. 1 is a top, right, front perspective view of a leveling instrument showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D238415 January 1976 Midgley
825760 July 1906 Russell
2814127 November 1957 Blatchford
3849898 November 1974 Turloff
Patent History
Patent number: D252500
Type: Grant
Filed: Sep 7, 1977
Date of Patent: Jul 31, 1979
Inventor: John F. Mason (Pass Christian, MS)
Primary Examiner: Nelson C. Holtje
Attorney: W. Brown Morton, Jr.
Application Number: 5/831,336
Classifications
Current U.S. Class: Spirit Level (D10/69); Transit Or Theodolite (D10/66); Liquid Quantity Level (D10/101)
International Classification: D1004;