Advertisement HAWF-2080 published by Holmes Products Corporation, copyright 1990. |
Advertisement HAWF-1009 published by Holmes Products Corporation 1992 (copyright dated 1993). |
Photographs depicting fan marketed by Duracraft Corporation, Sudbury, Mass. #DW-612; #DW-627. |
Advertisement Marvin 2000 published by The W. B. Marvin Manufacturing Company--Sep. 1990. |
Advertisement HAWF-3030 published by Holmes Products Corporation 1992. |
Brochure titled "Compact Twin Portable Window Fan" Marvin 3000 published by W. B. Marvin Mfg. Co., Oct. 1992. |
Copending design patent application Ser. No. 07/929,809 filed on Aug. 13, 1992. |
Owner's manual titled "Twin Window Fan" for Model #DW-627 published 1992 by Duracraft Corporation. |