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发明名称
ACOUSTIC HORNS
摘要
申请公布号
IE13979(L)
申请公布日期
1936.06.10
申请号
IED13979
申请日期
1935.12.03
申请人
DOUGLAS STUART SPENS STUART;NINA BENITA MARY DOUGLAS-HAMILTON
发明人
分类号
H04R1/08;H04R1/30;(IPC1-7):G10K11/10;G10K11/12
主分类号
H04R1/08
代理机构
代理人
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地址
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