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发明名称
AUTOMATIC BLOCK SYSTEM WITH FOUR INDICATIONS
摘要
申请公布号
RU1791241(C)
申请公布日期
1993.01.30
申请号
SU19894794663
申请日期
1989.12.07
申请人
TASHKENT I INZH ZHELEZNOD
发明人
POLEVOJ YURIJ I,SU;ALIEV MARAT M,SU;SHUMAKOV VLADIMIR M,SU;BELENKIJ NAUM M,SU;KRAVTSOVA NATALYA A,SU
分类号
B61L3/20;B61L23/16
主分类号
B61L3/20
代理机构
代理人
主权项
地址
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