Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4846677 | Castable buttress for rotary kiln heat exchanger and method of fabricating | Roger Snellman | 1989-07-11 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4846677 | Castable buttress for rotary kiln heat exchanger and method of fabricating | Roger Snellman | 1989-07-11 |