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发明名称
Apparatus for stereophonic sound-recording
摘要
申请公布号
US2668880(A)
申请公布日期
1954.02.09
申请号
US19510228193
申请日期
1951.05.25
申请人
KLANGFILM GESELLSCHAFT MIT BESCHRAENKTER HAFTUNG
发明人
FRIESS HANS
分类号
H04S1/00
主分类号
H04S1/00
代理机构
代理人
主权项
地址
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