Apparatus for manufacturing blocks,申请号US19470771178-传众专利搜索

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发明名称	Apparatus for manufacturing blocks
摘要
申请公布号	US2601712(A)	申请公布日期	1952.07.01
申请号	US19470771178	申请日期	1947.08.29
申请人	KEYS JOSEPH F	发明人	KEYS JOSEPH F.
分类号	B28B3/20;B28B11/16	主分类号	B28B3/20
代理机构		代理人
主权项
地址

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