Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D402290 | Megaphone | Ruth Engle Stevens | 1998-12-08 |
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Skip to contentShowing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D402290 | Megaphone | Ruth Engle Stevens | 1998-12-08 |