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发明名称
Improvements in train-carried devices for automatically recording different signal aspects
摘要
申请公布号
GB429411(A)
申请公布日期
1935.05.29
申请号
GB19340016520
申请日期
1934.06.02
申请人
HASLER A. G.
发明人
分类号
B61L3/10
主分类号
B61L3/10
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