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发明名称
摘要
申请公布号
JP2980662(B2)
申请公布日期
1999.11.22
申请号
JP19900266044
申请日期
1990.10.02
申请人
AI JII GIJUTSU KENKYUSHO KK
发明人
OOBA KEISUKE;NIIZEKI TAKANOBU
分类号
E04D3/40;E04D13/158;(IPC1-7):E04D13/158
主分类号
E04D3/40
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代理人
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