Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D757175 | Educational set of cards for addition and subtraction | Sarah G. Weiss | 2016-05-24 |
| D621878 | Mathematical educational set | Sarah G. Weiss | 2010-08-17 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D757175 | Educational set of cards for addition and subtraction | Sarah G. Weiss | 2016-05-24 |
| D621878 | Mathematical educational set | Sarah G. Weiss | 2010-08-17 |