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经营范围
发明名称
Harness for hearing aid units
摘要
申请公布号
US2676738(A)
申请公布日期
1954.04.27
申请号
US19520312971
申请日期
1952.10.03
申请人
HELEN HERRICK
发明人
HERRICK HELEN
分类号
A45F3/04;A45F3/14
主分类号
A45F3/04
代理机构
代理人
主权项
地址
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