Number | Name | Date | Kind |
---|---|---|---|
2855000 | Van Allen et al. | Oct 1958 | |
2857929 | Whitlock, Jr. | Oct 1958 | |
2947324 | Cooper et al. | Aug 1960 | |
2976701 | Greenwalt | Mar 1961 | |
3037525 | Weigers | Jun 1962 | |
3142313 | Plumettaz | Jul 1964 | |
3339583 | Fleckenstein et al. | Sep 1967 | |
3369790 | McHale et al. | Feb 1968 | |
3448959 | McHale et al. | Jun 1969 | |
3985154 | Hargraves | Oct 1976 | |
4139355 | Turner et al. | Feb 1979 | |
4212324 | Bauer | Jul 1980 | |
4311020 | Tobin et al. | Jan 1982 | |
4564045 | Koch et al. | Jan 1986 | |
4573497 | White | Mar 1986 | |
4644973 | Itoh et al. | Feb 1987 | |
4712582 | Marks | Dec 1987 | |
4753271 | Fornasari | Jun 1988 | |
4825908 | Tsuchihashi et al. | May 1989 | |
5265438 | Knowles et al. | Nov 1993 |
Number | Date | Country |
---|---|---|
58-42876 | Mar 1983 | JPX |
Entry |
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Two Pages of Drawings with Drawing Legends in Japanese, Undated. |
Brochure for PE Valve Co., Product Engineering Corporation Valves Showing Various Valves, Undated. |