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发明名称
Indicator of telephonic fees
摘要
申请公布号
US3002684(A)
申请公布日期
1961.10.03
申请号
US19570672946
申请日期
1957.07.19
申请人
SODECO SOCIETE DES COMPTEURS DE GENEVE
发明人
LUSCHER PAUL
分类号
H04M15/28
主分类号
H04M15/28
代理机构
代理人
主权项
地址
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