Improvements in gate valves,申请号GB19320023810-传众专利搜索

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发明名称	Improvements in gate valves
摘要
申请公布号	GB390711(A)	申请公布日期	1933.04.13
申请号	GB19320023810	申请日期	1932.08.25
申请人	MILTON PAUL LAURENT	发明人
分类号	F16K3/18	主分类号	F16K3/18
代理机构		代理人
主权项
地址

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