Surveying instrument


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

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a left side elevational plan view thereof.

Referenced Cited
U.S. Patent Documents
D252918 September 18, 1979 Kooi
D268910 May 10, 1983 Shipp et al.
D270816 October 4, 1983 Hays, Jr. et al.
2774275 December 1986 Keller
Other references
  • Keuffel & Esser Co., Automatic Self-leveling level Ni2, Sep. 1955, cover page.
Patent History
Patent number: D333276
Type: Grant
Filed: Jul 5, 1990
Date of Patent: Feb 16, 1993
Assignee: Carl-Zeiss-Stiftung, Heidenheim/Brenz (Oberkochen)
Inventor: Volker Donn (Konigsbronn)
Primary Examiner: Alan P. Douglas
Assistant Examiner: Antoine F. Davis
Law Firm: Hopgood, Calimafde, Kalil, Blaustein & Judlowe
Application Number: 7/548,759
Current U.S. Class: Transit Or Theodolite (D10/66)