Verfahren zur Herstellung von zusammengesetzten Rohren, welche eine Aussenschicht aus Asbestzement und eine innere Betonauskleidung aufweisen,申请号DE1952S027663-传众专利搜索

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发明名称	Verfahren zur Herstellung von zusammengesetzten Rohren, welche eine Aussenschicht aus Asbestzement und eine innere Betonauskleidung aufweisen
摘要
申请公布号	DE1030751(B)	申请公布日期	1958.05.22
申请号	DE1952S027663	申请日期	1952.03.14
申请人	SOCIETE ANONYME FRANCAISE ETERNIT	发明人	DESNOS PIERRE
分类号	B28B21/72	主分类号	B28B21/72
代理机构		代理人
主权项
地址

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