Improvements in the manufacture of metal tubes having sealed ends,申请号GB19420005562-传众专利搜索

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发明名称	Improvements in the manufacture of metal tubes having sealed ends
摘要
申请公布号	GB553626(A)	申请公布日期	1943.05.28
申请号	GB19420005562	申请日期	1942.04.25
申请人	BUNDY TUBING COMPANY	发明人
分类号	B21D41/04	主分类号	B21D41/04
代理机构		代理人
主权项
地址

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