Foundry sand binder,申请号US19380205123-传众专利搜索

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发明名称	Foundry sand binder
摘要
申请公布号	US2206369(A)	申请公布日期	1940.07.02
申请号	US19380205123	申请日期	1938.04.29
申请人	SALZBERG HAROLD K	发明人	SALZBERG HAROLD K.
分类号	B22C1/22	主分类号	B22C1/22
代理机构		代理人
主权项
地址

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