Improvements in and relating to piston rings and in the manufacture thereof,申请号GB19390009378-传众专利搜索

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发明名称	Improvements in and relating to piston rings and in the manufacture thereof
摘要
申请公布号	GB526707(A)	申请公布日期	1940.09.24
申请号	GB19390009378	申请日期	1939.03.25
申请人	AUBREY CLIFFORD SHORTHOUSE	发明人
分类号	F16J9/26;H01B11/18	主分类号	F16J9/26
代理机构		代理人
主权项
地址

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