Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6382234 | One shot valve for operating down-hole well working and sub-sea devices and tools | John M. Birckhead | 2002-05-07 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6382234 | One shot valve for operating down-hole well working and sub-sea devices and tools | John M. Birckhead | 2002-05-07 |