Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4955802 | Blow-extruding a multilayer synthetic-resin tube | Hartmut Halter | 1990-09-11 |
| 4815957 | Apparatus for calibrating a tubular foil balloon | Klaus Steinberg | 1989-03-28 |
| 4627805 | Vertical foil-blowing head | — | 1986-12-09 |
| 4464319 | Method of and apparatus for the coiling of flattened synthetic resin foil tubes | Hartmut Halter | 1984-08-07 |