Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4836474 | De-icer | James A. Briscoe, James C. Putt, Ronald W. Phillips, II | 1989-06-06 |
| 4826108 | De-icer | James A. Briscoe, James C. Putt, Ronald W. Phillips, II, Gary V. Tenison | 1989-05-02 |