Number | Name | Date | Kind |
---|---|---|---|
3320257 | Lesher | May 1967 | |
3642797 | Lesher | Feb 1972 | |
3673184 | Minami et al. | Jun 1972 | |
3770742 | Matsumoto et al. | Nov 1973 | |
3873545 | Osselaere et al. | Mar 1975 | |
3992380 | Lesher et al. | Nov 1976 | |
4018770 | Lesher et al. | Apr 1977 |
Entry |
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Matsumoto et al., [Japanese Kokai 78 18,600, published Feb. 20, 1978; C.A. 89, 24,351d (1978)]. |