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经营范围
发明名称
Earcup
摘要
申请公布号
GB0012365(D0)
申请公布日期
2000.07.12
申请号
GB20000012365
申请日期
2000.05.22
申请人
GENTEX CORPORATION
发明人
分类号
A42B3/16;H04R1/10
主分类号
A42B3/16
代理机构
代理人
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地址
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