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经营范围
发明名称
HEARING AID
摘要
申请公布号
JPS53694(A)
申请公布日期
1978.01.06
申请号
JP19760073563
申请日期
1976.06.22
申请人
SUWA SEIKOSHA KK
发明人
MITSUI KAZUTERU
分类号
H04R25/00;A61F11/00
主分类号
H04R25/00
代理机构
代理人
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地址
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