Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6773040 | Spacer-less type pipe joint and packing ring used for the same | Akihito Totsugi | 2004-08-10 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6773040 | Spacer-less type pipe joint and packing ring used for the same | Akihito Totsugi | 2004-08-10 |