Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4323256 | Front packer seal for ram blowout preventer | Tosh Miyagishima | 1982-04-06 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4323256 | Front packer seal for ram blowout preventer | Tosh Miyagishima | 1982-04-06 |