Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4845486 | Residential fuel-oil level reporting and alarm system | Robert D. Shapiro, Frank Banks, Andrew Mitchell, Barry S. Sunray, Robert A. DeFrancesco | 1989-07-04 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4845486 | Residential fuel-oil level reporting and alarm system | Robert D. Shapiro, Frank Banks, Andrew Mitchell, Barry S. Sunray, Robert A. DeFrancesco | 1989-07-04 |