Head mask for electric arc welding,申请号US19520303699-传众专利搜索

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发明名称	Head mask for electric arc welding
摘要
申请公布号	US2693597(A)	申请公布日期	1954.11.09
申请号	US19520303699	申请日期	1952.08.11
申请人	ERICH HORLBECK	发明人	HORLBECK ERICH
分类号	A61F9/06	主分类号	A61F9/06
代理机构		代理人
主权项
地址

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