Soil humidity meter
Description
FIG. 1 is a top and right front perspective view of a soil humidity meter showing my new design;
FIG. 2 is a bottom and left rear perspective view thereof.
Referenced Cited
U.S. Patent Documents
Other references
| D242603 | December 7, 1976 | Horton |
- Electronic Technician/Dealer, 1/75, p. 42--Multimeter at top center. Retailing Home Furnishings, 1/17/77--Sec. 3--p. 54--Soil Moisture Sensor at left.
Patent History
Patent number: D250882
Type: Grant
Filed: Nov 15, 1976
Date of Patent: Jan 23, 1979
Assignee: Substral International, Pernille S.A. (Fribourg)
Inventor: Villi Johansen (Sjaelland)
Primary Examiner: Nelson C. Holtje
Attorney: Leonard J. Robbins
Application Number: 5/742,166
Type: Grant
Filed: Nov 15, 1976
Date of Patent: Jan 23, 1979
Assignee: Substral International, Pernille S.A. (Fribourg)
Inventor: Villi Johansen (Sjaelland)
Primary Examiner: Nelson C. Holtje
Attorney: Leonard J. Robbins
Application Number: 5/742,166
Classifications
