Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4867920 | Emulsion explosive manufacturing method | Walter B. Sudweeks | 1989-09-19 |
| 4820361 | Emulsion explosive containing organic microspheres | Lee F. McKenzie | 1989-04-11 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4867920 | Emulsion explosive manufacturing method | Walter B. Sudweeks | 1989-09-19 |
| 4820361 | Emulsion explosive containing organic microspheres | Lee F. McKenzie | 1989-04-11 |