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发明名称
SPRECHTASTE FUER TELEFON-HANDAPPARAT.
摘要
申请公布号
DE1778652(U)
申请公布日期
1958.12.04
申请号
DE195800F5606U
申请日期
1958.10.09
申请人
FERNSPRECH-ZUBEHOER-DIENST G.M.B.H.
发明人
分类号
H01H13/00
主分类号
H01H13/00
代理机构
代理人
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地址
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