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发明名称
SOUND PRESSURE ACTIVE TRANSFORMER
摘要
申请公布号
GB8332138(D0)
申请公布日期
1984.01.11
申请号
GB19830032138
申请日期
1983.12.01
申请人
MGR INZ WLADYSLAW WYGNANSKI
发明人
分类号
H04R1/42
主分类号
H04R1/42
代理机构
代理人
主权项
地址
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