Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5673579 | Welded steel pipe manufacturing apparatus and method | Yuuji Hashimoto, Takaaki Toyooka, Susumu Itadani, Tsutomu Ide | 1997-10-07 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5673579 | Welded steel pipe manufacturing apparatus and method | Yuuji Hashimoto, Takaaki Toyooka, Susumu Itadani, Tsutomu Ide | 1997-10-07 |