Perfectionnements aux segments de pistons,申请号FRD912809-传众专利搜索

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发明名称	Perfectionnements aux segments de pistons
摘要
申请公布号	FR912809(A)	申请公布日期	1946.08.21
申请号	FRD912809	申请日期	1945.07.27
申请人	WELLWORTHY PISTON RINGS LIMITED	发明人	HOWLETT JOHN WILLIAM;WOOLCOTT ARTHUR JOHN
分类号	B24B7/16	主分类号	B24B7/16
代理机构		代理人
主权项
地址

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