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发明名称
Streckenschutz durch Richtungsrelais.
摘要
申请公布号
AT136902(B)
申请公布日期
1934.03.26
申请号
ATD136902
申请日期
1931.03.04
申请人
SIEMENS-SCHUCKERTWERKE AKTIENGESELLSCHAFT
发明人
DIPL. ING. HERMANN NEUGEBAUER
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