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发明名称
Message unit charging and billing equipment
摘要
申请公布号
US3400222(A)
申请公布日期
1968.09.03
申请号
US19630275008
申请日期
1963.04.23
申请人
AMERICAN TELEPHONE AND TELEGRAPH COMPANY
发明人
NIGHTINGALE JOHN G.;REPHOLZ JOHN M.;SIEGLINGER JOHN C.;ZAK STANLEY
分类号
H04M15/04
主分类号
H04M15/04
代理机构
代理人
主权项
地址
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