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发明名称
A TMS using railroad line worker protected system and operating method thereof
摘要
申请公布号
KR101008160(B1)
申请公布日期
2011.01.13
申请号
KR20080100803
申请日期
2008.10.14
申请人
发明人
分类号
B61L29/30
主分类号
B61L29/30
代理机构
代理人
主权项
地址
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