Issued Patents 2003
Showing 1–2 of 2 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 | Minoru Murai | 2003-11-04 |
| 6615458 | Releasable bottom end stop for slide fastener | Shigeyoshi Takasawa | 2003-09-09 |