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经营范围
发明名称
TELEPHONE PULSE METERING SYSTEM
摘要
申请公布号
US3433898(A)
申请公布日期
1969.03.18
申请号
USD3433898
申请日期
1965.09.17
申请人
AUTOMATIC ELECTRIC LAB. INC.
发明人
EMIEL H.M. SELLENSLAGH;WILLY F. VAN HOECK
分类号
H04M15/12;(IPC1-7):H04M15/10
主分类号
H04M15/12
代理机构
代理人
主权项
地址
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