Method of making foundry sand,申请号US19340753643-传众专利搜索

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发明名称	Method of making foundry sand
摘要
申请公布号	US2041721(A)	申请公布日期	1936.05.26
申请号	US19340753643	申请日期	1934.11.19
申请人	THE BABCOCK & WILCOX COMPANY	发明人	NORTON CHARLES L.
分类号	B22C5/18	主分类号	B22C5/18
代理机构		代理人
主权项
地址

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