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发明名称
Transmitter with vibratile air coupling
摘要
申请公布号
US2853146(A)
申请公布日期
1958.09.23
申请号
US19550486744
申请日期
1955.02.07
申请人
COATES GEORGE A
发明人
COATES GEORGE A.
分类号
H04R1/30
主分类号
H04R1/30
代理机构
代理人
主权项
地址
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