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发明名称
Устройство дл определени свободности железнодорожного перегона от подвижного состава
摘要
申请公布号
RU34480(U1)
申请公布日期
2003.12.10
申请号
RU20030126662U
申请日期
2003.09.05
申请人
发明人
分类号
B61L1/16;B61L21/06
主分类号
B61L1/16
代理机构
代理人
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地址
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