Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4842723 | Water purifying apparatus | Elmer L. Parks | 1989-06-27 |
| 4241601 | Pre-set automatically operable means for measuring the plasticity of test specimens including apparatus for indicating and recording the results thereof | Fred A. Pennington, Jr., John W. Porr, Jr. | 1980-12-30 |