Number | Name | Date | Kind |
---|---|---|---|
1505179 | Whiteley | Aug 1924 | |
1759774 | Andriulli | May 1930 | |
2809268 | Heron | Oct 1957 | |
2879372 | Dammond | Mar 1959 | |
3125657 | Colten | Mar 1964 | |
3870033 | Faylor et al. | Mar 1975 | |
3968346 | Cooksley | Jul 1976 | |
4085308 | Youngquist | Apr 1978 | |
4179603 | Zeigler et al. | Dec 1979 | |
4371777 | Roller et al. | Feb 1983 | |
4423311 | Varney | Dec 1983 | |
4461347 | Layton et al. | Jul 1984 | |
4567350 | Todd | Jan 1986 | |
4762980 | Insley | Aug 1988 | |
4835365 | Etheridge | May 1989 | |
5054107 | Batchelder | Oct 1991 | |
5054108 | Gustin et al. | Oct 1991 |
Number | Date | Country |
---|---|---|
161709 | Mar 1955 | AUX |
261481 | Apr 1960 | AUX |
236937 | Jan 1962 | AUX |
75274 | Mar 1983 | EPX |
2853910 | Jul 1980 | DEX |
3432717 | Mar 1986 | DEX |
166706 | Mar 1934 | CHX |
527759 | Oct 1940 | GBX |
2100559 | Dec 1982 | GBX |
2224103 | Apr 1990 | GBX |
Entry |
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"Requirements For Ultrapure Water" by Takaai Fukumoto, Ultraclean Technology Handbook, vol. 1 published by Marcel Dekker Inc. 1993, pp. 3, 28-30 and 42-46. |