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发明名称
LAUTSPRECHERANORDNUNG MIT SCHALLSTRAHLER.
摘要
申请公布号
DE1718604(U)
申请公布日期
1956.03.15
申请号
DE195500SC139U
申请日期
1955.01.13
申请人
GEORG V. SCHAUB
发明人
GEORG V. SCHAUB
分类号
主分类号
代理机构
代理人
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