Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4852407 | Method and apparatus for determining length of pipe utilizing sound waves | Isamu Komine, Masataka Kobayashi | 1989-08-01 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4852407 | Method and apparatus for determining length of pipe utilizing sound waves | Isamu Komine, Masataka Kobayashi | 1989-08-01 |