Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE31566 | Cooling structure for a metallurgical furnace | Karl-Heinz Langlitz, Karl H. Mahringer, deceased, by Christine Mahringer, heir, by Wolfgang L. Mahringer, heir | 1984-04-24 |
| 4195824 | Jig for tension elements for metallurgic vessels, particularly alternating converters | Erhard Pfeil, Paul Waldhorst | 1980-04-01 |