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经营范围
发明名称
Steering wheel microphone
摘要
申请公布号
US2644858(A)
申请公布日期
1953.07.07
申请号
US19510225821
申请日期
1951.05.11
申请人
SMALL KENNETH W
发明人
SMALL KENNETH W.
分类号
H04R1/08
主分类号
H04R1/08
代理机构
代理人
主权项
地址
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