Number | Name | Date | Kind |
---|---|---|---|
4264438 | Frejborg | Apr 1981 | |
4358371 | Jameson et al. | Nov 1982 | |
4410424 | Chupka et al. | Oct 1983 | |
4828689 | Lamort | May 1989 | |
4846971 | Lamort | Jul 1989 | |
4901417 | Chupka et al. | Feb 1990 | |
4954249 | Gero et al. | Sep 1990 | |
5011065 | Musselmann | Apr 1991 | |
5023986 | Gero et al. | Jun 1991 | |
5041212 | Gero et al. | Aug 1991 | |
5041214 | Gero et al. | Aug 1991 | |
5094360 | Lange | Mar 1992 | |
5118421 | Scarano | Jun 1992 | |
5139154 | Gero et al. | Aug 1992 | |
5285560 | Gero et al. | Feb 1994 | |
5472095 | Malm | Dec 1995 |
Number | Date | Country |
---|---|---|
1 271 415 | Jul 1990 | CAX |
630004 | Sep 1978 | SUX |
Entry |
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"Johnson Screen Products for Industry", Universal Oil Products Company--Johnson Division, L.M. (Larry) Vesel. |