Number | Name | Date | Kind |
---|---|---|---|
3733790 | Pierce | May 1973 | |
3788046 | Kaeppler et al. | Jan 1974 | |
3873286 | Wurtenberg | Mar 1975 | |
4704144 | LeBlanc et al. | Nov 1987 | |
5277704 | Miller et al. | Jan 1994 |
Number | Date | Country |
---|---|---|
6-226024 | Aug 1994 | JPX |
Entry |
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Torit Installation and Operation Manual, Series 50, 60, 70, snf 80; Models 54, 64, 66, 75, 81 and 84, Donaldson Company, Inc. (1990). |