Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8127574 | Method for producing mineral wool | Thomas Niehoff, Dirk Rogge, Bernd Rudolph | 2012-03-06 |
| 5003343 | Projection copying apparatus and projection screen therefor | Hubert Hackenberg, Traugott Liermann, Franz Nadler, Hans-Joachim Schrecke | 1991-03-26 |
| 4819317 | Arrangement for unloading and loading of x-ray film cassettes | Walter Bauer, Manfred Schmidt, Otto Butz | 1989-04-11 |
| 4652742 | Arrangement for and method of determining two or more superimposed film sheets | Dieter Wauer, Otto Butz, Josef Ganser | 1987-03-24 |
| 4590738 | Apparatus for loading and unloading a film cassette, in particular an X-ray film cassette | Peter Hosel | 1986-05-27 |