WELDING THIN WALL TUBES,申请号USD3568299-传众专利搜索

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发明名称	WELDING THIN WALL TUBES
摘要
申请公布号	US3568299(A)	申请公布日期	1971.03.09
申请号	USD3568299	申请日期	1968.06.11
申请人	CATERPILLAR TRACTOR CO.	发明人	MARION R. CALTON;JAMES A. WILLERTON JR.
分类号	B23K20/12;(IPC1-7):B23K27/00	主分类号	B23K20/12
代理机构		代理人
主权项
地址

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