Improvements in and relating to hooks,申请号GB19350023620-传众专利搜索

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发明名称	Improvements in and relating to hooks
摘要
申请公布号	GB456233(A)	申请公布日期	1936.11.05
申请号	GB19350023620	申请日期	1935.08.22
申请人	THE NATIONAL SUPPLY COMPANY	发明人
分类号	E21B19/04	主分类号	E21B19/04
代理机构		代理人
主权项
地址

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