Number | Name | Date | Kind |
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2773086 | Slocombe et al. | Dec 1966 | |
3898259 | Hearsey | Aug 1975 | |
3936484 | Rosenthal et al. | Feb 1976 | |
4153624 | Fern et al. | May 1979 | |
4223145 | Hentschel | Sep 1980 | |
4596679 | Hellbach | Jun 1986 | |
4883908 | Shawl et al. | Nov 1989 |
Entry |
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