Improvements in or relating to the lubrication of rotary valves,申请号GB19390031868-传众专利搜索

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发明名称	Improvements in or relating to the lubrication of rotary valves
摘要
申请公布号	GB537863(A)	申请公布日期	1941.07.10
申请号	GB19390031868	申请日期	1939.12.09
申请人	FRANK METCALF ASPIN	发明人
分类号	F01L7/08	主分类号	F01L7/08
代理机构		代理人
主权项
地址

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