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摘要
申请公布号
JPH02301899(A)
申请公布日期
1990.12.13
申请号
JP19890121544
申请日期
1989.05.17
申请人
HITACHI LTD
发明人
KOBAYASHI TERUO
分类号
G08C19/02
主分类号
G08C19/02
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