Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8800381 | Test apparatus for a threaded joint for oil country tubular goods | Yasuhiro Yamamoto, Shigeo Nagasaku | 2014-08-12 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8800381 | Test apparatus for a threaded joint for oil country tubular goods | Yasuhiro Yamamoto, Shigeo Nagasaku | 2014-08-12 |