Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4263249 | Method for producing reinforced plastic tubular body having annular grooves, and mold therefor | Kenji Mitooka, Sigeharu Fujiwara, Takesi Okuyama | 1981-04-21 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4263249 | Method for producing reinforced plastic tubular body having annular grooves, and mold therefor | Kenji Mitooka, Sigeharu Fujiwara, Takesi Okuyama | 1981-04-21 |