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发明名称
HOLE TRANSPORTING MATERIAL
摘要
申请公布号
EP0905567(A4)
申请公布日期
1999.09.01
申请号
EP19970924334
申请日期
1997.06.06
申请人
OSAKA GAS CO., LTD.
发明人
NISHIDA, RYOICHI;KAWASAKI, SHINICHI;MURASE, HIROAKI;FUJIKI, TSUYOSHI
分类号
C08G77/60;G03G5/07;(IPC1-7):G03G5/07
主分类号
C08G77/60
代理机构
代理人
主权项
地址
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