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发明名称
Method and apparatus for detecting and announcing pin fraud on coin telephones that use battery reversal pulses to meter charges
摘要
申请公布号
EP1006708(B1)
申请公布日期
2002.02.20
申请号
EP19990309318
申请日期
1999.11.23
申请人
LUCENT TECHNOLOGIES INC.
发明人
AKHTERUZZAMAN, M.
分类号
H04M17/02;(IPC1-7):H04M17/02
主分类号
H04M17/02
代理机构
代理人
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