Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4809491 | Plastic traveler for spinning rings, twisting rings and the like | Helmut Heinen, Helmut Nickolay | 1989-03-07 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4809491 | Plastic traveler for spinning rings, twisting rings and the like | Helmut Heinen, Helmut Nickolay | 1989-03-07 |