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经营范围
发明名称
INTERNAL WALL CLAMPING MEANS ADAPTED TO BE USED IN WELDING OF TUBES ALONG ITS CIRCUMFERENTIAL LINE
摘要
申请公布号
JPS52130454(A)
申请公布日期
1977.11.01
申请号
JP19760049053
申请日期
1976.04.27
申请人
SUMITOMO METAL IND
发明人
YOSHIDA MITSUO
分类号
B23K37/053;B23K37/04
主分类号
B23K37/053
代理机构
代理人
主权项
地址
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