J. C. Whitney & Co. Cat., p. 66, Defroster Duct, top right side of page. |
Two-page catalog sheet published by Atwood Mobile Products in Nov. 1987 and entitled Complete Class A Air Conditioning Heating and Defrost Systems. |
Catalog sheet (p. 41) published by Molded Products, Fort Worth, Tex., and bearing the caption "Air Deflector/Defrost", published prior to Sep. 27, 1990. |
Catalog sheet (p. C-4) published by Cary Products, Houston, Tex., and bearing the caption "Motor Homes", published prior to Sep. 27, 1990. |