Number | Name | Date | Kind |
---|---|---|---|
3907580 | van Ham | Mar 1973 | |
4070451 | Price | Nov 1976 | |
4115313 | Lyon et al. | Feb 1976 | |
4402935 | Gordon et al. | Sep 1983 |
Number | Date | Country |
---|---|---|
1603765 | Jul 1971 | FRX |
Entry |
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Balsam et al., Cosmetics: Science and Technology, vol. 2, pp. 564-571, 2nd ed., Wiley, New York. |