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经营范围
发明名称
Metallschalltrichter fuer grosse Lautstaerken
摘要
申请公布号
DE628371(C)
申请公布日期
1936.04.02
申请号
DENDATA062213D
申请日期
申请人
ALEXANDER ISAAC ABRAHAMS;ALEXANDER ISAAC ABRAHAMS
发明人
分类号
G10K11/02
主分类号
G10K11/02
代理机构
代理人
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地址
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