Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4340510 | Concrete mixtures or mortar mixtures or concretes or mortars and process for their production | Friedrich Howanietz | 1982-07-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4340510 | Concrete mixtures or mortar mixtures or concretes or mortars and process for their production | Friedrich Howanietz | 1982-07-20 |