Poutre en béton armé avec armature préalablement tendue,申请号FRD896405-传众专利搜索

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发明名称	Poutre en béton armé avec armature préalablement tendue
摘要
申请公布号	FR896405(A)	申请公布日期	1945.02.21
申请号	FRD896405	申请日期	1943.07.15
申请人	WAYSS & FREYTAG A. G.	发明人
分类号	B28B23/00;E04B5/16;E04C3/26	主分类号	B28B23/00
代理机构		代理人
主权项
地址

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