Dual contraceptive appliance with reversible proboscis,申请号GB19670050431-传众专利搜索

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发明名称	Dual contraceptive appliance with reversible proboscis
摘要
申请公布号	GB1146830(A)	申请公布日期	1969.03.26
申请号	GB19670050431	申请日期	1967.11.06
申请人	REGINALD OSWALD LUDWIG	发明人
分类号	A61F6/04;A61F6/06	主分类号	A61F6/04
代理机构		代理人
主权项
地址

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