牙膏 (pref.) - ya gao - toothpaste - KEYWORD: Early Chinese Periodicals Online (ECPO)

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牙膏 (pref.) - ya gao - toothpaste

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ADVERTISEMENT 潔牙白牙且免牙患 - jie ya bai ya qie mian ya huan
晶報 - Jing bao, vol. 1, no. 51 (03 August 1919), p. 4

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