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发明名称
Маршрутно-сигнальный аппарат-централизатор
摘要
申请公布号
SU83289(A1)
申请公布日期
1949.11.30
申请号
SU19480389156
申请日期
1948.12.22
申请人
GRIGOROV V.A.
发明人
GRIGOROV V.A.
分类号
B61L19/12
主分类号
B61L19/12
代理机构
代理人
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地址
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