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发明名称
Устройство для контроля электрических централизованных стрелок
摘要
申请公布号
SU27092(A1)
申请公布日期
1932.07.31
申请号
SU19310088382
申请日期
1931.05.13
申请人
LUPAL N.V.
发明人
LUPAL N.V.
分类号
B61L19/00
主分类号
B61L19/00
代理机构
代理人
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