Hydroscope

Description

FIG. 1 is a perspective view of a hydroscope, showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a side elevational view thereof;

FIG. 4 is a side elevational view thereof, opposite that shown in FIG. 3;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a left end elevational view thereof, as seen from FIG. 3; and

FIG. 7 is a right side elevational view thereof, as seen from FIG. 3.

Referenced Cited
U.S. Patent Documents
397060 January 1889 Knapp
3459175 August 1969 Miller
3889676 June 1975 Greene
4019515 April 26, 1977 Kornblum et al.
Patent History
Patent number: D306484
Type: Grant
Filed: Jun 17, 1987
Date of Patent: Mar 6, 1990
Inventor: Elmer G. Olson (Ontario)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Stella M. Reid
Law Firm: Bauer & Schaffer
Application Number: 7/63,283
Classifications
Current U.S. Class: D24/60