Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4867771 | Tensioning device for bag filters | James H. Brennecke | 1989-09-19 |
| 4813985 | Tensioning device for bag filters | James H. Brennecke | 1989-03-21 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4867771 | Tensioning device for bag filters | James H. Brennecke | 1989-09-19 |
| 4813985 | Tensioning device for bag filters | James H. Brennecke | 1989-03-21 |