RG

Robert Gudmandsen

OA Ortofon Manufacturing A/S: 3 patents #1 of 7Top 15%
Overall (All Time): #1,672,119 of 4,157,543Top 45%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4884262 Magnetic system for a stereo pick-up with a movable coil Jan Lindberg Larsen, Per Winfeld 1989-11-28
4310917 Pick-up Bjarne Hansen, Knud Andersen 1982-01-12
4237349 Compact moving-coil pickup of low weight and high quality Bjarne Hansen 1980-12-02