Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5671778 | Repairing tube, method for repairing pipe lines therewith and method for removing the repairing tube | Hiroyuki Sakuragi, Futoshi Makimoto, Shinichi Takebe, Takuji Sokawa, Hitoshi Saito | 1997-09-30 |