Number | Name | Date | Kind |
---|---|---|---|
2748218 | Leichsenring | May 1956 | |
2767276 | Buchanan et al. | Oct 1956 | |
3407277 | Chapin | Oct 1968 | |
3449535 | Otto et al. | Jun 1969 | |
3619526 | Riley | Nov 1971 | |
3679325 | Yost | Jul 1972 | |
4503301 | Kurtz | Mar 1985 | |
4593166 | Hirota et al. | Jun 1986 | |
4900883 | Brame et al. | Feb 1990 | |
5122628 | McLelland et al. | Jun 1992 | |
5243158 | Zimmermann | Sep 1993 | |
5554834 | Ellett | Sep 1996 |
Entry |
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Camrose Electric Controls Ltd., Edmonton, Alberta, Canada, Parts RS73 Pressure Controls, 1 page, 1993. |
Barber Industries Ltd., Edmonton, Alberta, Canada, Instructions for Installing and Operating High-Temp Presco-Switches, Type DHTE, Jan. 1992, 1 page. |