Cooling nozzle for use in welding,申请号US19440551955-传众专利搜索

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发明名称	Cooling nozzle for use in welding
摘要
申请公布号	US2449220(A)	申请公布日期	1948.09.14
申请号	US19440551955	申请日期	1944.08.30
申请人	GUPTON RONDA C	发明人	GUPTON RONDA C.
分类号	B23K37/00	主分类号	B23K37/00
代理机构		代理人
主权项
地址

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