Improvements relating to collets,申请号GB19400014517-传众专利搜索

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发明名称	Improvements relating to collets
摘要
申请公布号	GB540663(A)	申请公布日期	1941.10.24
申请号	GB19400014517	申请日期	1940.09.24
申请人	ROY WOOD	发明人
分类号	B23B31/20	主分类号	B23B31/20
代理机构		代理人
主权项
地址

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