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发明名称
Earring support for hearing aid tubes
摘要
申请公布号
US2506116(A)
申请公布日期
1950.05.02
申请号
US19470722359
申请日期
1947.01.16
申请人
STARKEY CHARLES H
发明人
STARKEY CHARLES H.
分类号
H04R25/02
主分类号
H04R25/02
代理机构
代理人
主权项
地址
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