Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4465408 | Mine-roof support control mechanism | Karl Krieger, Werner Reinelt | 1984-08-14 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4465408 | Mine-roof support control mechanism | Karl Krieger, Werner Reinelt | 1984-08-14 |