Piston ring expander,申请号GB19350033775-传众专利搜索

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发明名称	Piston ring expander
摘要
申请公布号	GB456038(A)	申请公布日期	1936.11.02
申请号	GB19350033775	申请日期	1935.12.05
申请人	THE PERFECT CIRCLE COMPANY	发明人
分类号	F16J9/06	主分类号	F16J9/06
代理机构		代理人
主权项
地址

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