Clamping device for butt-welding of pipes,申请号US19550546864-传众专利搜索

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发明名称	Clamping device for butt-welding of pipes
摘要
申请公布号	US2777048(A)	申请公布日期	1957.01.08
申请号	US19550546864	申请日期	1955.11.15
申请人	FRIEDRICH KOCKS	发明人	KOCKS FRIEDRICH
分类号	B23K37/053	主分类号	B23K37/053
代理机构		代理人
主权项
地址

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