Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4270871 | Expansion joint | — | 1981-06-02 |
| 4213324 | Punch press and method for making can ends with closures | John S. Kelley, Walter C. Lovell | 1980-07-22 |
| 4184422 | Mixing material in sealed containers | Walter C. Lovell | 1980-01-22 |