Number | Name | Date | Kind |
---|---|---|---|
278216 | Brown | May 1883 | |
2389331 | Tyden | Nov 1945 | |
3389884 | Ault | Jun 1968 | |
3783947 | Dix et al. | Jan 1974 | |
4066129 | Anderson | Jan 1978 | |
4117887 | Anderson | Oct 1978 | |
4215751 | Mears | Aug 1980 | |
4596289 | Johnson | Jun 1986 | |
4609047 | Pieczykolau | Sep 1986 | |
4706759 | Grasseschi | Nov 1987 | |
4926946 | Polan | May 1990 | |
4977963 | Simons | Dec 1990 |
Entry |
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Catalog insert "Viking Technical Data Micromatic.RTM. Model a Concealed Sprinkler"; Sprinkler 23, Sprinkler 24, Form No. 011089, 2 pages, Jul. 31, 1989; The Viking Corporation Fire Extinguishing Systems-Automatic Sprinklers. |