Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4356865 | Pump plug for use in well operations | Bartel Kuilman | 1982-11-02 |
CA
Cornelis Appel
Overall (1982): #71,462 of 81,411Top 90%
1
Patents 1982