An improved holder and expander for piston rings,申请号GB19340007250-传众专利搜索

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发明名称	An improved holder and expander for piston rings
摘要
申请公布号	GB425934(A)	申请公布日期	1935.03.25
申请号	GB19340007250	申请日期	1934.03.07
申请人	ZIM MANUFACTURING CO.	发明人
分类号	B25B27/12	主分类号	B25B27/12
代理机构		代理人
主权项
地址

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