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发明名称
Signaling system
摘要
申请公布号
US2248727(A)
申请公布日期
1941.07.08
申请号
US19390308338
申请日期
1939.12.09
申请人
STROBEL HOWARD M
发明人
STROBEL HOWARD M.
分类号
G01S1/02;G01S13/84;G01S19/34
主分类号
G01S1/02
代理机构
代理人
主权项
地址
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