Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4824451 | Melt-blown filter medium | Peter W. Shipp, Jr. | 1989-04-25 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4824451 | Melt-blown filter medium | Peter W. Shipp, Jr. | 1989-04-25 |