Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4414973 | Respirator face mask | Philip L. Lowry | 1983-11-15 |
| D271246 | Combined respirator face piece and strap units | Philip L. Lowry | 1983-11-01 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4414973 | Respirator face mask | Philip L. Lowry | 1983-11-15 |
| D271246 | Combined respirator face piece and strap units | Philip L. Lowry | 1983-11-01 |