METHODS AND APPARATUS FOR EXPANDING EARTH MATERIALS,申请号CAD467489-传众专利搜索

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发明名称	METHODS AND APPARATUS FOR EXPANDING EARTH MATERIALS
摘要
申请公布号	CA467489(A)	申请公布日期	1950.08.22
申请号	CAD467489	申请日期
申请人	HAROLD LADD PIERCE	发明人	HAROLD LADD PIERCE
分类号		主分类号
代理机构		代理人
主权项
地址

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