Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4768365 | Process for producing tungsten heavy alloy sheet | James R. Spencer | 1988-09-06 |
| 4744944 | Process for producing tungsten heavy alloy billets | James R. Spencer | 1988-05-17 |