Improvements in or relating to pipe tongs and tong levers,申请号GB19400015188-传众专利搜索

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发明名称	Improvements in or relating to pipe tongs and tong levers
摘要
申请公布号	GB545322(A)	申请公布日期	1942.05.20
申请号	GB19400015188	申请日期	1940.10.11
申请人	BYRON JACKSON CO.	发明人
分类号	E21B19/16	主分类号	E21B19/16
代理机构		代理人
主权项
地址

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