Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885028 | Process for producing prealloyed tungsten alloy powders | Nelson E. Kopatz, Walter A. Johnson, Jack E. Vanderpool | 1989-12-05 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885028 | Process for producing prealloyed tungsten alloy powders | Nelson E. Kopatz, Walter A. Johnson, Jack E. Vanderpool | 1989-12-05 |