EXPANDABLE MANDREL FOR HOLLOW PILES,申请号CAD743723-传众专利搜索

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发明名称	EXPANDABLE MANDREL FOR HOLLOW PILES
摘要
申请公布号	CA743723(A)	申请公布日期	1966.10.04
申请号	CAD743723	申请日期
申请人	LAWRENCE G. BARCUS;WILLIAM R. BARCUS	发明人	LAWRENCE G. BARCUS;WILLIAM R. BARCUS
分类号		主分类号
代理机构		代理人
主权项
地址

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