Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4825674 | Metallic tubular structure having improved collapse strength and method of producing the same | Kenichi Tanaka | 1989-05-02 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4825674 | Metallic tubular structure having improved collapse strength and method of producing the same | Kenichi Tanaka | 1989-05-02 |