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发明名称
Способ изготовления микрофонных мембран
摘要
申请公布号
SU82936(A1)
申请公布日期
1949.11.30
申请号
SU19470355246
申请日期
1947.03.21
申请人
BOGDACHENKO A.G.
发明人
BOGDACHENKO A.G.
分类号
H04R31/00
主分类号
H04R31/00
代理机构
代理人
主权项
地址
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