Number | Date | Country | Kind |
---|---|---|---|
3814773 | Apr 1988 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
3658921 | Wessendorf | Apr 1972 |
Number | Date | Country |
---|---|---|
740947 | Aug 1966 | CAX |
1768976 | Jul 1968 | DEX |
Entry |
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Chemical Abstracts, vol. 81, Nr. 19, Nov. 11, 1974, p. 475, column 2, No. 119937Y. |
Chemical Abstracts, vol. 81, Nr. 19, Nov. 11, 1974, p. 553, column 2, No. 59652e. |
Chemical Abstracts, vol. 80, Nr. 11, Mar. 18, 1974, p. 319, column 1, No. 59447f. |
Patent Abstracts of Japan, vol. 5, No. 194, Dec. 10, 1981 (C-82) (866). |
JO 1132549, Katayama Kagaku Kog, Nov. 17, 1987. |