Number | Date | Country | Kind |
---|---|---|---|
9599/73 | Jul 1973 | CH |
Number | Name | Date | Kind |
---|---|---|---|
3018287 | Fleck | Jan 1962 | |
3479349 | Allison et al. | Nov 1969 | |
3589921 | Allison et al. | Jun 1971 | |
3723425 | Ackerman et al. | Mar 1973 | |
3740341 | Brocklehurst | Jun 1973 | |
3757010 | Balzer et al. | Sep 1973 |
Number | Date | Country |
---|---|---|
522,082 | Jun 1972 | CH |
1,313,469 | Apr 1973 | UK |
Entry |
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Loffelman Chem. Abstracts 75(1971), No. 152986. |
Farbenfabriken Chem. Abstracts 74 (1971), No. 43527. |
Ackermann Chem. Abstracts 75, (1971), No. 50427. |