Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5304887 | Crystal resonator device | Roger James Williamson | 1994-04-19 |
RH
Rudolf A. H. Heinecke
Overall (1994): #72,239 of 165,921Top 45%
1
Patents 1994