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发明名称
DATA TRANSMISSION LINE SUPERVISING CIRCUIT
摘要
申请公布号
JPH01135240(A)
申请公布日期
1989.05.26
申请号
JP19870292137
申请日期
1987.11.20
申请人
HITACHI ENG CO LTD
发明人
MIYAJIMA NORIYOSHI;MAEDA TORU;YOSHINO HIDEKI
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主分类号
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