Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D271228 | Playground climber | Valentine J. Zimmerman, Mary H. Abel | 1983-11-01 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D271228 | Playground climber | Valentine J. Zimmerman, Mary H. Abel | 1983-11-01 |