Patents Assigned to Rhen Beteiligungs-und Finanzierungs-AG
  • Multi-purpose radio
    Patent number: 4222119
    Abstract: A multi-purpose radio of the AC or battery operated type which includes connections for an auxiliary unit which is an alarm device of the ultrasonic type in which the transducers of the alarm device are mounted on the radio cabinet. The output of the alarm device is applied to the audio frequency amplifier section of the radio.
    Type: Grant
    Filed: August 22, 1978
    Date of Patent: September 9, 1980
    Assignee: Rhen Beteiligungs-und Finanzierungs-AG
    Inventor: Hermann Brunner-Schwer