Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5251690 | Apparatus for collecting cleaning bodies for tubular heat exchanger | Katsumoto Otake, Yoshio Sumiya, Yasuo Fujitani, Shigeo Oda, Takuya Sasaki +5 more | 1993-10-12 |