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发明名称	PROTRACTORS
摘要
申请公布号	CA477976(A)	申请公布日期	1951.10.23
申请号	CAD477976	申请日期
申请人	ARTHUR EDWIN WYNTER	发明人	ARTHUR EDWIN WYNTER
分类号		主分类号
代理机构		代理人
主权项
地址

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