1993

All plastic?

Development, manufacture and introduction of a computer-aided cutting device for rigid polystyrene foams

1991

Vibration free…

Development of a new type of tennis racket for Völkel Ski & Tennis

1988

Physics...

Studies: Physics and Philosophy at the Ruhr University Bochum

1988

Looked down the tube...

Development of the world's smallest tube preamplifier for moving coil cartridges, for Clearaudio GmbH

1987

Bumerang Effects

From 1986 development and production of the danholt boomerang drive and market launch in 1987. 

1986

Got taken in...

Development and design of a special dispenser for double-sided foam adhesive tape on behalf of 3M Deutschland GmbH.

1984

danholt Loudspeaker manufacture

Foundation: danholt loudspeaker factory in Düsseldorf