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发明名称
KONKURIITOSEIKODOYOHANTAINO SETSUZOKUHOHO OYOBI SONOSOCHI
摘要
申请公布号
JPS5196140(A)
申请公布日期
1976.08.23
申请号
JP19750020751
申请日期
1975.02.19
申请人
发明人
分类号
E21D11/08
主分类号
E21D11/08
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代理人
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