Toothbrush having powder pickup grooves,申请号US19450631560-传众专利搜索

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发明名称	Toothbrush having powder pickup grooves
摘要
申请公布号	US2533345(A)	申请公布日期	1950.12.12
申请号	US19450631560	申请日期	1945.11.29
申请人	CLAUDE L. BENNETT	发明人	BENNETT JOHN E.
分类号	A46B9/04;A46B11/00	主分类号	A46B9/04
代理机构		代理人
主权项
地址

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