Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4314827 | Non-fused aluminum oxide-based abrasive mineral | Harold G. Sowman | 1982-02-09 |
ML
Melvin A. Leitheiser
Overall (1982): #43,127 of 81,411Top 55%
1
Patents 1982