Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4887317 | Cold weather system | James G. Phillips, James G. Phillips, Jr., Joanne Harlow | 1989-12-19 |
| 4843647 | Cold weather system | James G. Phillips, James G. Phillips, Jr., Joanne Harlow | 1989-07-04 |