Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4843895 | Test stand for R/C vehicles | Andrew HARPER | 1989-07-04 |
| RE30853 | Cassette record player-recorder | — | 1982-01-26 |
KH
Kenneth B. Harper
Overall (All Time): #2,331,646 of 4,157,543Top 60%
2
Patents All Time