Valvage pour ballon en caoutchouc,申请号FRD946564-传众专利搜索

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发明名称	Valvage pour ballon en caoutchouc
摘要
申请公布号	FR946564(A)	申请公布日期	1949.06.08
申请号	FRD946564	申请日期	1947.05.13
申请人		发明人	IMBERT JEAN
分类号	F16K15/20	主分类号	F16K15/20
代理机构		代理人
主权项
地址

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