Number | Name | Date | Kind |
---|---|---|---|
RE30826 | Laws | Dec 1981 | |
2264495 | Wilner | Dec 1941 | |
3337784 | Lueder | Aug 1967 | |
3417302 | Lueder | Dec 1968 | |
3711743 | Bolasny | Jan 1973 | |
4264858 | Archer | Apr 1981 | |
4467961 | Coffee | Aug 1984 | |
4484812 | Takayanagi | Nov 1984 | |
4542434 | Gehlke et al. | Sep 1985 |
Entry |
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R. H. Dunphy et al, "A Computer Controlled Room Air Ionization System". |
(Author and date not known) "Computer Controlled Air Ionization", 10 pages, distributed by Voyager Technologies, Inc. |