Dr.-Ing. Frank Märtens
instruments for speed control
VKS, decelerometers,
stop watches
Telefon: +49 531 592-1633
Telefax: +49 531 592-1305
E-Mail: frank.maertens@ptb.de

Dipl.-Phys. Helga Grohne
taximeter, odometers
Telefon: +49 531 592-1632
Telefax: +49 531 592-1305
E-Mail: helga.grohne@ptb.de

Dipl.-Ing. Matthias Fischer
speedometers,
traffic light cameras
Telefon: +49 531 592-1670
Telefax: +49 531 592-1305
E-Mail: matthias.fischer@ptb.de