Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4346875 | Pastry cloth having suction cups removably associated therewith | Patricia J. Spencer | 1982-08-31 |
| 4271011 | Flour sifter | Patricia J. Spencer, Robert L. DeRoeck | 1981-06-02 |