Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4331744 | Lead salt electric storage battery | Ziemowit A. A. Piontkowski, deceased, by Christian G. Carlsen, administrator | 1982-05-25 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4331744 | Lead salt electric storage battery | Ziemowit A. A. Piontkowski, deceased, by Christian G. Carlsen, administrator | 1982-05-25 |