Vacuum mold for molding concrete and the like,申请号US19460651351-传众专利搜索

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发明名称	Vacuum mold for molding concrete and the like
摘要
申请公布号	US2474721(A)	申请公布日期	1949.06.28
申请号	US19460651351	申请日期	1946.03.01
申请人	VACUUM CONCRETE INC.	发明人	BILLNER KARL P.
分类号	B28B7/46	主分类号	B28B7/46
代理机构		代理人
主权项
地址

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