Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8025548 | External diaphragm game call with manual diaphragm manipulation | William L. Keller, Jr. | 2011-09-27 |
| 7963819 | External diaphragm game call with manual diaphragm manipulation | William L. Keller, Jr. | 2011-06-21 |