Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5665165 | Seal and a chamber having a seal | David S. Rickerby | 1997-09-09 |
JS
John A. Spencer
Overall (1997): #125,925 of 185,788Top 70%
1
Patents 1997