Combined clean-out and flow control device for fluid lines,申请号US19470771313-传众专利搜索

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发明名称	Combined clean-out and flow control device for fluid lines
摘要
申请公布号	US2576640(A)	申请公布日期	1951.11.27
申请号	US19470771313	申请日期	1947.08.29
申请人	J. A. ZURN MANUFACTURING COMPANY	发明人	RAMSEY WELLINGTON L.
分类号	E03C1/302	主分类号	E03C1/302
代理机构		代理人
主权项
地址

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