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发明名称
Громкоговоритель
摘要
申请公布号
SU35251(A1)
申请公布日期
1934.03.31
申请号
SU19330132206
申请日期
1933.06.19
申请人
PANK YU.K.
发明人
PANK YU.K.
分类号
H04R11/02
主分类号
H04R11/02
代理机构
代理人
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地址
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