Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4235361 | Process for producing a pressure vessel head or shell | George Hays | 1980-11-25 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4235361 | Process for producing a pressure vessel head or shell | George Hays | 1980-11-25 |