Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4632720 | Apparatus for preparing an annular body of a hydraulically setting mass | Adolf Meyer, Manfred Pfeifer | 1986-12-30 |
| 4472335 | Method for preparing an annular body of a hydraulically setting mass | Adolf Meyer, Manfred Pfeifer | 1984-09-18 |