Backventil,申请号FID44314-传众专利搜索

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发明名称	Backventil
摘要
申请公布号	FI44314(C)	申请公布日期	1971.10.11
申请号	FID44314	申请日期	1964.11.13
申请人		发明人	RATELBAND JOHANNES BERNADUS
分类号	F16K15/16;(IPC1-7):F16K15/16	主分类号	F16K15/16
代理机构		代理人
主权项
地址

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