CLAMP,申请号US19760657508-传众专利搜索

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发明名称	CLAMP
摘要
申请公布号	US4052047(A)	申请公布日期	1977.10.04
申请号	US19760657508	申请日期	1976.02.12
申请人	JOY MANUFACTURING COMPANY	发明人	BAILEY, EDWARD A.
分类号	E21B19/16;(IPC1-7):B25B1/24	主分类号	E21B19/16
代理机构		代理人
主权项
地址

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