Number | Date | Country | Kind |
---|---|---|---|
63-166798 | Jul 1988 | JPX | |
63-167717 | Jul 1988 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
2577900 | Lisk et al. | Dec 1951 | |
4116974 | Forge et al. | Sep 1978 | |
4670593 | Teach | Jun 1987 |
Number | Date | Country |
---|---|---|
97107 | Dec 1983 | EPX |
53-108933 | Sep 1978 | JPX |
Entry |
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Chem. Abst., vol. 97, #197999q (1982). |