METHOD AND APPARATUS FOR CONTROLLING DENSITY PROFILE IN A CONCRETE EXTRUDED SLAB,申请号CA19922060584-传众专利搜索

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发明名称	METHOD AND APPARATUS FOR CONTROLLING DENSITY PROFILE IN A CONCRETE EXTRUDED SLAB
摘要
申请公布号	CA2060584(A1)	申请公布日期	1992.08.12
申请号	CA19922060584	申请日期	1992.02.04
申请人	ULTRA SPAN, A DIVISION OF ALPHAIR VENTILATING SYSTEMS INC.	发明人	MARTENS, ERNST
分类号	B28B1/08	主分类号	B28B1/08
代理机构		代理人
主权项
地址

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