Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4624634 | Method and arrangement for improving the heat economy in rotary kilns | Bertil Pettersson | 1986-11-25 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4624634 | Method and arrangement for improving the heat economy in rotary kilns | Bertil Pettersson | 1986-11-25 |