Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4804511 | Process for dry spinning yarns of improved uniformity and reduced adhesion | Christian Pieper, Hans K. Burghartz, Rolf-Burkhard Hirsch | 1989-02-14 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4804511 | Process for dry spinning yarns of improved uniformity and reduced adhesion | Christian Pieper, Hans K. Burghartz, Rolf-Burkhard Hirsch | 1989-02-14 |