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经营范围
发明名称
Photoelectric Microphone
摘要
申请公布号
GB1188679(A)
申请公布日期
1970.04.22
申请号
GB19670053092
申请日期
1967.11.22
申请人
CESKOLOVENSKA AKADEMIE VED
发明人
VLADIMIR ILBERG;JOSEF BEJCEK;JOSEF BIM
分类号
H04R23/00
主分类号
H04R23/00
代理机构
代理人
主权项
地址
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