Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4842915 | Tufting base for carpets made of a spunbonded fabric, a method of manufacturing the base, and a tufting carpet | Ludwig Hartmann, Engelbert Loecher, Ivo Ruzek | 1989-06-27 |