Method of making porous concrete by forcing air into cement slurries,申请号US19260144391-传众专利搜索

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发明名称	Method of making porous concrete by forcing air into cement slurries
摘要
申请公布号	US1769275(A)	申请公布日期	1930.07.01
申请号	US19260144391	申请日期	1926.10.26
申请人	THE BUBBLESTONE COMPANY	发明人	RICE JOHN A.
分类号	B01F3/04;B28C5/38	主分类号	B01F3/04
代理机构		代理人
主权项
地址

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