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发明名称
Devices and method for toll free telephone services
摘要
申请公布号
IL101596(A)
申请公布日期
1995.05.26
申请号
IL19920101596
申请日期
1992.04.15
申请人
LABATON ISAAC J
发明人
分类号
H04M1/677;H04M3/38;H04M3/42;H04M3/493;H04Q3/70;(IPC1-7):H04M15/00;H04M17/00
主分类号
H04M1/677
代理机构
代理人
主权项
地址
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