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发明名称
Oscillating code transmitter
摘要
申请公布号
US2388484(A)
申请公布日期
1945.11.06
申请号
US19430473100
申请日期
1943.01.21
申请人
GENERAL RAILWAY SIGNAL COMPANY
发明人
HEWES RALPH W.
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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