Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5678986 | Fluid displacement apparatus with lubricating mechanism | Isao Hoashi, Akiyoshi Higashiyama | 1997-10-21 |
| 5615599 | Guiding mechanism for reciprocating piston of piston-type compressor | — | 1997-04-01 |