Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4248815 | Process for the manufacture of gate valves for closure devices having a pouring nozzle and similar objects | James B. Blackburn | 1981-02-03 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4248815 | Process for the manufacture of gate valves for closure devices having a pouring nozzle and similar objects | James B. Blackburn | 1981-02-03 |