Brazed joint with backing ring,申请号US19480048550-传众专利搜索

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法人/股东/高管

发明名称	Brazed joint with backing ring
摘要
申请公布号	US2646995(A)	申请公布日期	1953.07.28
申请号	US19480048550	申请日期	1948.09.10
申请人	THOMPSON ROLAND J	发明人	THOMPSON ROLAND J.
分类号	B23K9/035	主分类号	B23K9/035
代理机构		代理人
主权项
地址

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