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发明名称
Fernsprechanlage mit Gesprächszählung nach einem für verschiedene Zonen variierenden Tarif.
摘要
申请公布号
CH154963(A)
申请公布日期
1932.05.31
申请号
CHD154963
申请日期
1929.04.03
申请人
TELEFONAKTIEBOLAGET L.M. ERICSSON
发明人
ERICSSON TELEFONAKTIEBOLAGET L.M.
分类号
H04M15/16
主分类号
H04M15/16
代理机构
代理人
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地址
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