| 摘要 |
1,168,366. Dentifrice. BOFORS A.B. 23 Nov., 1967 [23 Nov., 1966], No. 53457/67. Heading A5B. Dentifrice compositions comprise sodium fluoride, spherical particles of polymethyl methacrylate having a size of from 0.2Á to 2.0Á and conventional dentifrice ingredients.
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