发明授权
US4169885A Dental and oral hygiene preparations 失效
牙科和口腔卫生准备

Dental and oral hygiene preparations
摘要:
Disclosed is a dental hygiene preparation in the form of a filled capsule or a filled sweet comprising an outer shell containing a hydrophilic dental and/or oral hygiene substance and an inner core of a lipophilic substance.
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