Improvements in, and relating to, ratchet braces for drilling,申请号GB19310011043-传众专利搜索

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发明名称	Improvements in, and relating to, ratchet braces for drilling
摘要
申请公布号	GB374202(A)	申请公布日期	1932.06.09
申请号	GB19310011043	申请日期	1931.04.14
申请人	HARDYPICK, LIMITED;HARRY DEXTER	发明人
分类号	B23B45/12	主分类号	B23B45/12
代理机构		代理人
主权项
地址

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