SAFETY TRENCHING BOX,申请号USD3593528-传众专利搜索

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发明名称	SAFETY TRENCHING BOX
摘要
申请公布号	US3593528(A)	申请公布日期	1971.07.20
申请号	USD3593528	申请日期	1969.12.15
申请人	JOHN R. PAVESE	发明人	JOHN R. PAVESE
分类号	E02D17/08;E21D9/06;(IPC1-7):E21D7/00	主分类号	E02D17/08
代理机构		代理人
主权项
地址

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