There has been some trouble about Schurr Keys here in Germany. The original Manufacturer has temporarily given the rights to build Schurr Keys to another person, but as the Second person was only producing low-quality-keys he took back his permission. As fas as I know the homepage of the >Original< schurr-keys is
http://www.schurr.de .
73, Fabian DJ1YFK (Using the only REAL QRQ-keyer: Sensor-Key)
