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发明名称
Arc welding apparatus
摘要
申请公布号
US1962342(A)
申请公布日期
1934.06.12
申请号
US19310509308
申请日期
1931.01.17
申请人
WESTINGHOUSE ELECTRIC AND MANUFACTURING COMPANY
发明人
FAHNOE HANS FREDERIK HELWIG;GLENN ERVYL MALVERN;KNOWLES DEWEY D.
分类号
B23K9/067;B23K9/073
主分类号
B23K9/067
代理机构
代理人
主权项
地址
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