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发明名称
TONE RINGER
摘要
申请公布号
US3467788(A)
申请公布日期
1969.09.16
申请号
USD3467788
申请日期
1966.07.20
申请人
INTERN. STANDARD ELECTRIC CORP.
发明人
JOHN FREDERICK WHY;ATHANASIOS PAPADOPOULOS
分类号
H04M19/04;(IPC1-7):H04M1/02
主分类号
H04M19/04
代理机构
代理人
主权项
地址
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