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发明名称
Improvements relating to electrical control apparatus for railway signalling systemsand the like
摘要
申请公布号
GB562955(A)
申请公布日期
1944.07.24
申请号
GB19420014616
申请日期
1942.10.19
申请人
ARTHUR VAUGHAN TOMLINSON
发明人
分类号
B61L3/22
主分类号
B61L3/22
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代理人
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