Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4813312 | Power-wrench, a boiling spindle and an operational method | — | 1989-03-21 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4813312 | Power-wrench, a boiling spindle and an operational method | — | 1989-03-21 |