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发明名称
摘要
申请公布号	FR869831(A)	申请公布日期	1942.02.21
申请号	FRD869831	申请日期
申请人		发明人
分类号	F16J1/08;F16J9/20	主分类号	F16J1/08
代理机构		代理人
主权项
地址

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