Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5660209 | Porous pipe and process for producing same | James J. Franz | 1997-08-26 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5660209 | Porous pipe and process for producing same | James J. Franz | 1997-08-26 |