Procédé et appareil de fabrication de tuyaux en ciment à l'amiante,申请号FRD919012-传众专利搜索

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发明名称	Procédé et appareil de fabrication de tuyaux en ciment à l'amiante
摘要
申请公布号	FR919012(A)	申请公布日期	1947.02.25
申请号	FRD919012	申请日期	1945.12.15
申请人	THE RUBEROID CO	发明人
分类号	B28B21/52	主分类号	B28B21/52
代理机构		代理人
主权项
地址

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