Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4450854 | Lubricated split plug valve | William H. Alexander | 1984-05-29 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4450854 | Lubricated split plug valve | William H. Alexander | 1984-05-29 |