A METHOD OF MANUFACTURING A PREHEATER FOR PREHEATING PIPES DURING WELDING AND PREHEATER THEREOF,申请号IN1986MA03219-传众专利搜索

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发明名称	A METHOD OF MANUFACTURING A PREHEATER FOR PREHEATING PIPES DURING WELDING AND PREHEATER THEREOF
摘要
申请公布号	IN166815(B)	申请公布日期	1990.07.21
申请号	IN1986MA03219	申请日期	1986.01.20
申请人	HOT-HED, INC.	发明人	LOUIS JASPER WARDLAW III
分类号	B23K5/213;(IPC1-7):B23K5/213	主分类号	B23K5/213
代理机构		代理人
主权项
地址

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