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经营范围
发明名称
Tonwiedergabegerät.
摘要
申请公布号
CH203881(A)
申请公布日期
1939.03.31
申请号
CHD203881
申请日期
1936.04.08
申请人
HAZELTINE CORPORATION
发明人
CORPORATION HAZELTINE
分类号
H04R1/34
主分类号
H04R1/34
代理机构
代理人
主权项
地址
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