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发明名称
摘要
申请公布号
JPS6050921(B2)
申请公布日期
1985.11.11
申请号
JP19790108892
申请日期
1979.08.27
申请人
NIPPON KOKUJU TETSUDO;SHIBAURA SEISAKUSHO KK
发明人
YAMAZAKI KAZUHIDE;MORISAWA MASAOMI;NAKAJIMA MAKI
分类号
E01B27/12;E01B27/14
主分类号
E01B27/12
代理机构
代理人
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