Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6641140 | Apparatus for retaining lubrication oil at sliding surface of shaft seal device disposed within oil chamber of submersible pump | Satoshi Matsumoto | 2003-11-04 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6641140 | Apparatus for retaining lubrication oil at sliding surface of shaft seal device disposed within oil chamber of submersible pump | Satoshi Matsumoto | 2003-11-04 |