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经营范围
发明名称
SPEAKING AID
摘要
申请公布号
JPS5720264(A)
申请公布日期
1982.02.02
申请号
JP19800095802
申请日期
1980.07.09
申请人
NAGASHIMA MEDICAL INSTR
发明人
SATOU OKIO;YAMAGUCHI TSUKASA
分类号
H04R1/46;A61F2/20
主分类号
H04R1/46
代理机构
代理人
主权项
地址
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