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发明名称
Communicating system
摘要
申请公布号
US2245756(A)
申请公布日期
1941.06.17
申请号
US19390270602
申请日期
1939.04.28
申请人
CAVANAUGH LUKE C;VERNON ROOHK HENRY
发明人
CAVANAUGH LUKE C.;ROOHK HENRY VERNON
分类号
H04M9/00
主分类号
H04M9/00
代理机构
代理人
主权项
地址
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