Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D299950 | Combined seal-off valve body and cap | Joseph H. Nichols | 1989-02-21 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D299950 | Combined seal-off valve body and cap | Joseph H. Nichols | 1989-02-21 |