Number | Name | Date | Kind |
---|---|---|---|
D349567 | Miller et al. | Aug 1994 | |
629377 | Leland | Jul 1899 | |
2426405 | McDermott | Aug 1947 | |
2539450 | Magill | Jan 1951 | |
3241680 | Humbert Jr. | Mar 1966 | |
3442392 | Skelley | May 1969 | |
3566607 | Sixt | Mar 1971 | |
4154688 | Pall | May 1979 | |
4402830 | Pall | Sep 1983 | |
4882056 | Degen et al. | Nov 1989 | |
4902417 | Lien | Feb 1990 | |
5039413 | Harwood et al. | Aug 1991 | |
5252207 | Miller et al. | Oct 1993 | |
5290457 | Karbachsch et al. | Mar 1994 | |
5543047 | Stoyell et al. | Aug 1996 |
Number | Date | Country |
---|---|---|
855068 | Dec 1955 | GBX |
1005987 | Sep 1963 | GBX |
1337170 | Dec 1971 | GBX |
Entry |
---|
"Ultipor Composite Filter Structure", Pall Corporation, 1992. |
Number | Date | Country | |
---|---|---|---|
Parent | 031227 | Nov 1994 | |
Parent | 024481 | Jun 1994 | |
Parent | 682452 | Apr 1991 |