Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4354523 | Lubricant fitting for a valve | William S. Shelton | 1982-10-19 |
| 4313458 | Restricted movement valve seats for an expanding gate valve | Ivan A. Burns | 1982-02-02 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4354523 | Lubricant fitting for a valve | William S. Shelton | 1982-10-19 |
| 4313458 | Restricted movement valve seats for an expanding gate valve | Ivan A. Burns | 1982-02-02 |