Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6149346 | Method for replacement of existing pipes and device for carrying out the method | Nobuhisa Takamatsu, Toshio Hirai, Toshio Akesaka | 2000-11-21 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6149346 | Method for replacement of existing pipes and device for carrying out the method | Nobuhisa Takamatsu, Toshio Hirai, Toshio Akesaka | 2000-11-21 |