Number | Name | Date | Kind |
---|---|---|---|
2010910 | Atkins | Aug 1935 | |
2059396 | Ribert | Nov 1936 | |
2820000 | Menzies | Jan 1958 | |
2844444 | Jordan | Jul 1958 | |
2873181 | Hanford | Feb 1959 | |
2977206 | Sheets | Mar 1961 | |
3060098 | Gershon | Oct 1962 | |
3151027 | Cooley et al. | Sep 1964 | |
3257282 | Muhler | Jan 1966 | |
3573886 | Goetzinger et al. | Apr 1971 | |
3803301 | Cordon et al. | Apr 1974 | |
3804946 | Harrison et al. | Apr 1974 | |
3929987 | Colodney et al. | Dec 1975 | |
3935306 | Roberts et al. | Jan 1976 |
Number | Date | Country |
---|---|---|
2,426,110 | Jan 1975 | DT |
207,769 | Dec 1967 | SU |
Entry |
---|
Gershon et al., "Dentifrices", Chap. 14, vol. I, 2nd Ed. (1972), pp. 424-434, 461-476, 482-483, of Balsam et al., (Ed.) Cosmetics Science & Technology, Wiley-Interscience, N.Y., N.Y. |