Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4397234 | Electromagnetic print hammer coil assembly | Ho Chong Lee, Gerhard Wolfert, Jack Louis Zable | 1983-08-09 |
| 4269117 | Electro-magnetic print hammer | Ho Chong Lee, Jack Louis Zable | 1981-05-26 |
DR
David H. Rickenbach
Overall (All Time): #2,363,272 of 4,157,543Top 60%
2
Patents All Time