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发明名称
Telephone set for communication in airplanes
摘要
申请公布号
US2191055(A)
申请公布日期
1940.02.20
申请号
US19370163077
申请日期
1937.09.09
申请人
SIEMENS APPARATE UND MASCHINEN GESELLSCHAFT MIT BESCHRANKTER HAFTUNG
发明人
WENZKY KARL
分类号
H04M1/05
主分类号
H04M1/05
代理机构
代理人
主权项
地址
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