Combined Heating And Cooling Or With Diverse Element Patents (Class D23/328)
  • Heat exchanger housing
    Patent number: D297044
    Type: Grant
    Filed: December 19, 1985
    Date of Patent: August 2, 1988
    Assignee: Del-Air Systems Ltd.
    Inventor: Dirk Van Ee
  • Heater
    Patent number: D303285
    Type: Grant
    Filed: May 26, 1987
    Date of Patent: September 5, 1989
    Assignee: Turkhot Tech. Inc.
    Inventor: Francois Mongeau
  • Heater or cooling fan
    Patent number: D314614
    Type: Grant
    Filed: November 20, 1989
    Date of Patent: February 12, 1991
    Inventor: Lih-Sheng Ko