Number | Name | Date | Kind |
---|---|---|---|
2435014 | Niederl | Jan 1948 | |
3028365 | Schnell et al. | Apr 1962 | |
3207794 | Haines | Sep 1965 | |
3340310 | Gilbert et al. | Sep 1967 | |
3388097 | Cramer | Jun 1968 | |
4117018 | Ceveland et al. | Sep 1978 | |
4182838 | Mark et al. | Jan 1980 |
Number | Date | Country |
---|---|---|
6407547 | Mar 1965 | NLX |
1017988 | Jan 1966 | GBX |
1029750 | May 1966 | GBX |
1095959 | Dec 1967 | GBX |
Entry |
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Cevaert-Photo Peoducten, "French Patent Abstract, Pharmaceuticals, Photographic", French 21/5/65, Indian 22 & 29,5,65, vol. 5, No. 25, FR.84976/1,285,486. |
Korshak et al., "Chem. Abstract", vol. 64, (1966), 6766e, p. 8321h. |