Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888978 | Instrument to measure leakage of steam from a steam trap | Hideaki Yumoto, Masao Yonemura | 1989-12-26 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888978 | Instrument to measure leakage of steam from a steam trap | Hideaki Yumoto, Masao Yonemura | 1989-12-26 |