Patents Assigned to Raymond Mirly
  • Vehicle back-up alarm
    Patent number: 3943507
    Abstract: A solid state alarm circuit for producing intermittent alarm signals when a vehicle is operated in reverse. The circuit includes a sound generator modulated by a pulse generator to produce bursts of oscillations which drive sound producing loudspeakers.
    Type: Grant
    Filed: October 29, 1974
    Date of Patent: March 9, 1976
    Assignee: Raymond Mirly
    Inventors: Franklin D. Neal, Raymond Mirly