Concrete element with holes and method for its production,申请号FI19890003216-传众专利搜索

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发明名称	Concrete element with holes and method for its production
摘要
申请公布号	FI83686(B)	申请公布日期	1991.04.30
申请号	FI19890003216	申请日期	1989.06.30
申请人	LOHJA BETONILA OY	发明人	VIRTANEN, MATTI J.
分类号	E04C;E04C2/52;(IPC1-7):E04C2/52	主分类号	E04C
代理机构		代理人
主权项
地址

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