Inventor

ROTHHAAS DIRK

DE2 patents

Patents

2 patents

US7545284B2Jun 9, 2009

Signaling appliance, in particular a signaling column

WERMA SIGNALTECHNIK GMBH & CO10 citations77

US6572242B2Jun 3, 2003

Illuminator for a signal lamp

WERMA SIGNALTECHNIK GMBH & CO6 citations58