HOLE PIERCING APPARATUS,申请号USD3572204-传众专利搜索

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发明名称	HOLE PIERCING APPARATUS
摘要
申请公布号	US3572204(A)	申请公布日期	1971.03.23
申请号	USD3572204	申请日期	1967.09.11
申请人	JOHN R. MCCONNELL	发明人	JOHN R. MCCONNELL
分类号	B21D28/24;(IPC1-7):B26D7/06	主分类号	B21D28/24
代理机构		代理人
主权项
地址

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