Demonstrating device for vaginal diaphragms,申请号US19410388442-传众专利搜索

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发明名称	Demonstrating device for vaginal diaphragms
摘要
申请公布号	US2284888(A)	申请公布日期	1942.06.02
申请号	US19410388442	申请日期	1941.04.14
申请人	ARC DIAPHRAGM & DRUG CO.	发明人	JR. JAMES R. ARNEILL,
分类号	G09B23/28	主分类号	G09B23/28
代理机构		代理人
主权项
地址

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