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发明名称
摘要
申请公布号
JP2733862(B2)
申请公布日期
1998.03.30
申请号
JP19890321547
申请日期
1989.12.13
申请人
NITSUTO KAGAKU KOGYO KK
发明人
YAMAGUCHI YASUMASA;ORII KOICHI;ARAI HACHIRO;IDE AKIRA
分类号
C01B33/187;C01B33/193;(IPC1-7):C01B33/193
主分类号
C01B33/187
代理机构
代理人
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