Process for the manufacture of tubes of cement material,申请号US19330662603-传众专利搜索

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发明名称	Process for the manufacture of tubes of cement material
摘要
申请公布号	US2008074(A)	申请公布日期	1935.07.16
申请号	US19330662603	申请日期	1933.03.24
申请人	UMBERTO ISMAN	发明人	ISMAN UMBERTO
分类号	B28B21/24	主分类号	B28B21/24
代理机构		代理人
主权项
地址

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