This is a divisional of application Ser. No. 845,354, filed Oct. 25, 1977, and now abandoned.
Number | Name | Date | Kind |
---|---|---|---|
3705943 | Kaufman et al. | Dec 1972 | |
3897553 | Peterson et al. | Jul 1975 | |
3988449 | Buchel et al. | Oct 1976 |
Number | Date | Country |
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3821394 | Oct 1963 | JPX |
Entry |
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Zasosov, et al, "Chemical Abstracts," vol. 49 (1955), col. 912h-913d. |
Chatt, et al. "Chemical Abstracts," vol. 49 (1955), col. 5081f. |
Grosjean, et al. "Chemical Abstracts," vol. 58 (1963), col. 6850g. |
Pourcel, et al., "Chemical Abstracts," vol. 78, 1973, col. 25965s. |
Number | Date | Country | |
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Parent | 845354 | Oct 1977 |