Number | Name | Date | Kind |
---|---|---|---|
3674687 | Quase | Jul 1972 | |
4135908 | Widmer | Jan 1979 | |
4829045 | Fransham | May 1989 | |
4976873 | Ross | Dec 1990 | |
5133619 | Murfae et al. | Jul 1992 | |
5223154 | MacPherson, Jr. et al. | Jun 1993 | |
5294337 | Johnson | Mar 1994 | |
5296293 | Jobst | Mar 1994 | |
5297367 | Sainz | Mar 1994 | |
5316589 | Krieger, Jr. | May 1994 | |
5322629 | Stewart | Jun 1994 | |
5330651 | Robertson et al. | Jul 1994 | |
5391295 | Wilcox et al. | Feb 1995 | |
5419838 | DiTullio | May 1995 | |
5437786 | Horsley et al. | Aug 1995 | |
5458769 | Johannessen | Oct 1995 | |
5511904 | Van Egmond | Apr 1996 | |
5549817 | Horsley et al. | Aug 1996 | |
5573349 | Paoluccio | Nov 1996 | |
5624552 | Vales et al. | Apr 1997 | |
5632889 | Thorp | May 1997 |
Number | Date | Country |
---|---|---|
054684 | Jan 1975 | JPX |
Entry |
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"The Radial Filter," Aero-Mod Incorporated, Manhattan, Kansas, May, 1993. |