Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4465405 | Method and device for the backfilling of roadway supports in mine and tunnel construction with the aid of support hoses having a hardening filler | — | 1984-08-14 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4465405 | Method and device for the backfilling of roadway supports in mine and tunnel construction with the aid of support hoses having a hardening filler | — | 1984-08-14 |