Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5615740 | Internal pressure sleeve for use with easily drillable exit ports | Laurier E. Comeau, Elis Vandenberg | 1997-04-01 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5615740 | Internal pressure sleeve for use with easily drillable exit ports | Laurier E. Comeau, Elis Vandenberg | 1997-04-01 |