The development and production departments are located at:

Jülicher Straße 236

D-52070 Aachen, Germany

Tel.: +49 241 95451312

The organisation of HHF is located at:

Auf dem Anger 29

D-52076 Aachen, Germany

Tel.: +49 2408 9379019 (eventually answering machine)

FAX: +49 2408 9379952

Mail: Info@HHFT.de