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经营范围
发明名称
LAUTSPRECHER.
摘要
申请公布号
DE1710455(U)
申请公布日期
1955.11.10
申请号
DE195500H9042U
申请日期
1955.07.04
申请人
HELOTON LAUTSPRECHER- U. APPARATEBAU G.M.B.H.
发明人
分类号
主分类号
代理机构
代理人
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