This is a continuation of application Ser. No. 718,185 filed Jun. 20, 1991abandoned, which is a division of application Ser. No. 323,022, filed Mar. 17, 1989, now U.S. Pat. No. 5,096,577.
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2283472 | Tuxhorn | May 1942 | |
3155609 | Pampel | Nov 1964 | |
3385786 | Klock | May 1968 | |
3456385 | Plath | Jul 1969 | |
3653192 | Bryant | Apr 1972 | |
3760946 | Boler | Sep 1973 | |
3839198 | Shelef | Oct 1974 | |
3852378 | Guida | Dec 1974 | |
3911514 | Ito | Oct 1975 | |
3927491 | Farnsworth | Dec 1975 | |
3959923 | Selke | Jun 1976 | |
4133141 | Lee | Jan 1979 | |
4169050 | Serfling et al. | Sep 1979 | |
4209943 | Moeller et al. | Jul 1980 | |
4320594 | Raymond | Mar 1982 | |
4324067 | Kessler | Apr 1982 | |
4333263 | Adey | Jun 1982 | |
4333827 | Plosz | Jun 1982 | |
4382348 | Kitsu et al. | May 1983 | |
4487588 | Lewis, III et al. | Dec 1984 | |
4536988 | Hogen | Aug 1985 | |
4738563 | Clark | Apr 1988 | |
4747958 | Eberhardt | May 1988 | |
4806251 | Durda | Feb 1989 | |
4872985 | Dinges | Oct 1989 | |
5011604 | Wilde et al. | Apr 1991 |
Number | Date | Country |
---|---|---|
241896 | Aug 1963 | ATX |
2239120 | Feb 1975 | FRX |
2361060 | Mar 1978 | FRX |
277905 | Apr 1990 | DDX |
5870893 | Oct 1981 | JPX |
906455 | Feb 1981 | SUX |
1373035 | Nov 1974 | GBX |
Entry |
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Concentrates Oil For Easier Recovery, Megator Corporation. |
Mud Cat In Action, National Car Rental System, Inc., Public Works, Dec. 1981. |
Aerated Lagoon Systems With Improved Performance, Linvil G. Rich, Water/Engineering & Management, Feb. 1982. |
Bio-Separator, Bisanco Inc. |
A Low-Cost Secondary Treatment Alternative, Linvil G. Rich, Water/Engineering & Management, Feb. 1982. |
Operations Forum, vol. 4, Aug. 1987. |
Journal WPCF, vol. 60, No. 7, Jul. 1988, 1253-1258. |
Number | Date | Country | |
---|---|---|---|
Parent | 323022 | Mar 1989 |
Number | Date | Country | |
---|---|---|---|
Parent | 718185 | Jun 1991 |