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Patent
   D252500
Priority
Sep 07 1977
Filed
Sep 07 1977
Issued
Jul 31 1979
Expiry
Jul 31 1993
Inventors
Mason, Joh…
Assg.orig
Assg.curr
Entity
unknown
Referenced by
2
References
4
Maint.:
n/a
The ornamental design for a leveling instrument, as shown.

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.
INVENTORS:

Mason, John F.

THIS PATENT IS REFERENCED BY THESE PATENTS:
Patent Priority Assignee Title
D273567, Nov 19 1981 Level indicator or the like
D338414, Jun 27 1990 Level
THIS PATENT REFERENCES THESE PATENTS:
Patent Priority Assignee Title
2814127,
3849898,
825760,
238415,
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