Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D531164 | Self-amplified loudspeaker | Isaac Ferstenberg, Thomas Nelson | 2006-10-31 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D531164 | Self-amplified loudspeaker | Isaac Ferstenberg, Thomas Nelson | 2006-10-31 |