Procédé de fabrication de tuyaux en ciment,申请号FRD876486-传众专利搜索

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发明名称	Procédé de fabrication de tuyaux en ciment
摘要
申请公布号	FR876486(A)	申请公布日期	1942.11.06
申请号	FRD876486	申请日期	1941.06.28
申请人	L'ENTREPRISE INDUSTRIELLE	发明人
分类号	B28B21/30;B28B21/72	主分类号	B28B21/30
代理机构		代理人
主权项
地址

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