Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4779669 | Feeder sleeves | Clifford F. Corbett | 1988-10-25 |
| 4719958 | Method, apparatus and feeder sleeves for the production of casting moulds | Michael Friedrichs | 1988-01-19 |
| 4574869 | Casting mould, and cavity former and sleeve for use therewith | Gerd Trinkl | 1986-03-11 |
| 4467858 | Blind feeder sleeves | Gerd Trinkl | 1984-08-28 |
| 4423762 | Method for the production of a metal casting mould having a riser and a cavity former and riser sleeve for use therein | Gerd Trinkl | 1984-01-03 |