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发明名称
Приспособление для защиты ушей от шума
摘要
申请公布号
SU41642(A1)
申请公布日期
1935.02.28
申请号
SU19340149466
申请日期
1934.06.17
申请人
SALTYNSKIJ E.M.
发明人
SALTYNSKIJ E.M.
分类号
A61F11/06
主分类号
A61F11/06
代理机构
代理人
主权项
地址
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