Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4669374 | Can-baling machine | Charles M. Davis | 1987-06-02 |
| 4601238 | Can-baling machine | Chales M. Davis, Jr. | 1986-07-22 |
| 4241132 | Insulating boards | Ralph Pratt, Charles P. Howland | 1980-12-23 |