Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4853166 | Method and an apparatus for producing compound block members, especially building blocks having a heat insulating intermediate layer | Bent S. Andersen | 1989-08-01 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4853166 | Method and an apparatus for producing compound block members, especially building blocks having a heat insulating intermediate layer | Bent S. Andersen | 1989-08-01 |