GRAIN SAMPLE BOX,申请号CAD297431-传众专利搜索

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发明名称	GRAIN SAMPLE BOX
摘要
申请公布号	CA297431(A)	申请公布日期	1930.02.11
申请号	CAD297431	申请日期
申请人	AVERY FENTON SPROULE	发明人	AVERY FENTON SPROULE
分类号		主分类号
代理机构		代理人
主权项
地址

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