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经营范围
发明名称
CUTTER HEAD FOR MECHANICAL EXCAVATION SHIELDING
摘要
申请公布号
JPS55111592(A)
申请公布日期
1980.08.28
申请号
JP19790017202
申请日期
1979.02.19
申请人
NIPPON TELEGRAPH & TELEPHONE;KOMATSU MFG CO LTD
发明人
YAMADA TOSHIO;ISHIDA KAZUO;KOJIMA CHIAKI
分类号
E21D9/087;E21D9/08
主分类号
E21D9/087
代理机构
代理人
主权项
地址
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