Number | Date | Country | Kind |
---|---|---|---|
43 01 541.7 | Jan 1993 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
3011904 | Ballentine et al. | Dec 1961 | |
3156665 | Brossman et al. | Nov 1964 | |
3215663 | Weisberg | Nov 1965 | |
3352821 | Costain et al. | Nov 1967 | |
3778407 | Hild | Dec 1973 | |
3883475 | Racky et al. | May 1975 | |
4314927 | Theysohn et al. | Feb 1982 | |
4314929 | Mahoney | Feb 1982 | |
4471080 | Rinaldi | Sep 1984 | |
4670487 | Nielinger et al. | Jun 1987 | |
4921896 | Bonin et al. | May 1990 |
Number | Date | Country |
---|---|---|
255901 | Feb 1988 | EPX |
157756 | Nov 1988 | EPX |
332965 | Sep 1989 | EPX |
1931387 | Oct 1974 | DEX |
Entry |
---|
Pat. Abst. of Japan, vol. 3, No. 3 (C-033), Jan. 16, 1979 (English abstract of JP-A 53124564). |
Pat. Abst. of Japan, vol. 11, No. 13 (C--397), Jan. 14, 1987 (English abstract of JP-A 61190557). |
Database WPI, Derwent Publications, Section Ch, Week 8330, AN 83-720839 (English abstract of JP-A 58 104218). |
Technisches Informationsblatt, Uber Heliogen-Pigmente der BASF AG, 1980. |