FK

Frank S. Kampmann

AC Apt Co.: 1 patents #8 of 21Top 40%
Overall (All Time): #2,373,985 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4239937 Stereo separation control — 1980-12-16
4220817 Audio playback systems — 1980-09-02