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经营范围
发明名称
STEEL PIPE JOINT
摘要
申请公布号
JPS56109975(A)
申请公布日期
1981.08.31
申请号
JP19800010574
申请日期
1980.01.31
申请人
NIPPON STEEL CORP
发明人
AKASE SHIGEYUKI;AKAZAWA MASAHISA;KAMIYAMA FUJIMASA
分类号
F16L15/00;F16L15/04;F16L21/00
主分类号
F16L15/00
代理机构
代理人
主权项
地址
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