Placer mining sluice
Description
FIG. 1 is a perspective view of a placer mining sluice showing my new design;
FIG. 2 is a left end elevational view thereof;
FIG. 3 is a right end elevational view thereof;
FIG. 4 is a top plan view thereof;
FIG. 5 is a bottom plan view thereof;
FIG. 6 is a rear elevational view thereof.
Referenced Cited
Patent History
Patent number: D302018
Type: Grant
Filed: Sep 17, 1986
Date of Patent: Jul 4, 1989
Inventors: Jack Messenger (Sacramento, CA), Viggo Mathiesen (Sacramento, CA)
Primary Examiner: B. J. Bullock
Application Number: 6/908,529
Type: Grant
Filed: Sep 17, 1986
Date of Patent: Jul 4, 1989
Inventors: Jack Messenger (Sacramento, CA), Viggo Mathiesen (Sacramento, CA)
Primary Examiner: B. J. Bullock
Application Number: 6/908,529
Classifications
Current U.S. Class:
Vibrator Or Separator (D15/147)