Number | Name | Date | Kind |
---|---|---|---|
3668136 | Barker | Jun 1972 | |
3755559 | Hewitt | Aug 1973 | |
3849348 | Hewitt | Nov 1974 | |
3962418 | Birkofer | Jun 1976 | |
3990991 | Gerstein | Nov 1976 |
Entry |
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Jellinek, "Formulation and Function of Cosmetics", Wiley-Interscience (1972), pp. 148, 147, 150. |