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发明名称
Oscillating code transmitter
摘要
申请公布号
US2351588(A)
申请公布日期
1944.06.20
申请号
US19400369862
申请日期
1940.12.12
申请人
GENERAL RAILWAY SIGNAL COMPANY
发明人
FIELD OSCAR S.
分类号
B61L23/16
主分类号
B61L23/16
代理机构
代理人
主权项
地址
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