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发明名称
Vom fahrenden Zug selbsttaetig gesteuerte UEberwegsicherung
摘要
申请公布号
DE532545(C)
申请公布日期
1931.08.29
申请号
DE1927O017975D
申请日期
1927.11.06
申请人
SAMUEL ALEXANDER ORR;OSCAR LOUIS SUENDERHAUF
发明人
分类号
B61L29/22
主分类号
B61L29/22
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代理人
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