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经营范围
发明名称
WELDING METHOD FROM INNER SIDE OF SQUARE PIPE
摘要
申请公布号
JPS5494447(A)
申请公布日期
1979.07.26
申请号
JP19780001453
申请日期
1978.01.10
申请人
TERAOKA YASUO
发明人
TERAOKA YASUO
分类号
B23K9/00;B23K31/00
主分类号
B23K9/00
代理机构
代理人
主权项
地址
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