Number | Name | Date | Kind |
---|---|---|---|
3743263 | Szekely | Jul 1973 | |
3870511 | Szekely | Mar 1975 | |
4021026 | Szekely | May 1977 | |
4191486 | Pelton | Mar 1980 | |
4203581 | Pelton | May 1980 | |
4443004 | Hicter et al. | Apr 1984 | |
4624128 | Pelton | Nov 1986 | |
4685822 | Pelton | Aug 1987 | |
4941647 | Pelton | Jul 1990 | |
4998710 | Pelton | Mar 1991 | |
5085536 | Pelton | Feb 1992 | |
5198180 | Pelton | Mar 1993 | |
5275385 | Pelton | Jan 1994 | |
5275844 | Moore | Jan 1994 |
Number | Date | Country |
---|---|---|
0 238 884 | Sep 1987 | EPX |
Entry |
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Efficiency Through Know-How, The Hydro Aluminum Hycast.RTM. Metal Refining System, Hydro Aluminum Hycast a.s., Dec. 1994. |