Number | Name | Date | Kind |
---|---|---|---|
3297583 | Dierichs et al. | Jan 1967 | |
3852201 | Jackson | Dec 1974 | |
4046197 | Gruesbeck et al. | Sep 1977 | |
4169797 | Johnston et al. | Oct 1979 | |
4175042 | Mondshine | Nov 1979 | |
4330414 | Hoover | May 1982 | |
4350601 | Mosier et al. | Sep 1982 |
Number | Date | Country |
---|---|---|
2000799 | Jan 1979 | GBX |
Entry |
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Stauffer et al., International Application Published Under the Patent Cooperation Treaty, Int. Publication No. WO80/00590, 4-3-80. |