Patents Assigned to Botelco
  • Sensing circuit
    Patent number: 4086502
    Abstract: A sensing circuit is provided that is exceptionally sensitive. The circuit can respond to a minute change in a signal to actuate an electrically-operated device. The circuit is relatively simple, uses inexpensive components, and is compact.
    Type: Grant
    Filed: November 11, 1976
    Date of Patent: April 25, 1978
    Assignee: Botelco
    Inventor: Leslie J. Toth