Number | Name | Date | Kind |
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3709706 | Sowman | May 1969 | |
3793041 | Sowman | Feb 1974 | |
4732878 | Everitt | Mar 1988 | |
4797378 | Sowman | Jan 1989 | |
4810441 | Emblem et al. | Mar 1989 | |
4927622 | Jade | May 1990 |
Entry |
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Kamiya et al., Journal of Materials Science, 15:1765-1771 (1980). |
Sakka and Kuzuka, Journal of Non-Crystalline Solids, 100:142-153 (1988). |