Number | Name | Date | Kind |
---|---|---|---|
3271006 | Brown et al. | Sep 1966 | |
4241901 | Shircliffe | Dec 1980 | |
4599034 | Kennedy et al. | Jul 1986 | |
4772172 | Rosen | Sep 1988 | |
5269501 | Liegel et al. | Dec 1993 |
Entry |
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4-Page Brochure published by Tricon Lifts, Inc., Greeley, Colo., in 1991 and entitled Trion Model 1800 Lift. |