Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4428815 | Vacuum-type article holder and methods of supportively retaining articles | Walter W. Powell | 1984-01-31 |
| 4328087 | Apparatus for treating portions of articles in a liquid | Francis S. Maschler | 1982-05-04 |
| 4312716 | Supporting an array of elongate articles | Francis S. Maschler | 1982-01-26 |