Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4247273 | Method and an apparatus for cambering the edges of webs of thermoplastic materials on one and both sides using the energy of ultrasonic vibration | Gerhard Pogrzeba, Alfred Neworal, Heinrich Bussmann, Roland Hourticolon, Rudolf Hannappel +1 more | 1981-01-27 |