Number | Name | Date | Kind |
---|---|---|---|
1729135 | Slauson | Sep 1929 | |
2190886 | Schaaf et al. | Feb 1940 | |
2210397 | Dreiss | Aug 1940 | |
2322548 | Sigmund | Jun 1943 | |
2397759 | Sigmund | Apr 1946 | |
2494431 | Eckstein | Jan 1950 | |
2599604 | Bauer et al. | Jun 1952 | |
2663660 | Layte | Dec 1953 | |
2714340 | Brown | Aug 1955 | |
2784802 | Bub et al. | Mar 1957 | |
2908350 | Buckman | Oct 1959 | |
2915426 | Poelman | Dec 1959 | |
2936855 | Allen et al. | May 1960 | |
2945559 | Buckman | Jul 1960 | |
3020977 | Huppke et al. | Feb 1962 | |
3025963 | Bauer | Mar 1962 | |
3037637 | Bub | Jun 1962 | |
3057771 | Schenck | Oct 1962 | |
3070937 | Bub | Jan 1963 | |
3178494 | Tisdale | Apr 1965 | |
3198336 | Hyslop | Aug 1965 | |
3322617 | Osborne | May 1967 | |
3337388 | Wosaba | Aug 1967 | |
3351920 | Hart | Oct 1970 | |
3401077 | Zink | Sep 1968 | |
3401803 | Bub | Sep 1968 | |
3481830 | Hanke | Dec 1969 | |
3540079 | Bush | Nov 1970 | |
3692615 | Ohmori | Sep 1972 | |
3799354 | Buckman et al. | Mar 1974 | |
3807150 | Maracle | Apr 1974 | |
3858793 | Dudrey | Jan 1975 | |
3871851 | Neumann | Mar 1975 | |
3993425 | Dunn et al. | Nov 1976 | |
4102792 | Harris | Jul 1978 | |
4252591 | Rosenberg | Feb 1981 | |
4268290 | Barrington | May 1981 | |
4410427 | Wydeven | Oct 1983 | |
4410458 | Evert | Feb 1979 | |
4610706 | Nesher | Sep 1986 | |
4708724 | Agnew | Nov 1987 |
Number | Date | Country |
---|---|---|
5311 | Nov 1955 | DEX |
2951316 | Jul 1981 | DEX |
3300293 | Jul 1984 | DEX |
393022 | Dec 1908 | FRX |
Entry |
---|
"Hepa Filters for Every Application", Flanders Filters, Inc., 1988 product literature. |
"Dimple-Pleat Filters", Flanders Filters, Inc., Product Bulletin No. 871, 1987. |
"Crossflow Catalytic Afterburner" (source unknown). |