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经营范围
发明名称
TELEPHONE BELL: INVERTED OVERLAPPING GONGS
摘要
申请公布号
NZ197843(A)
申请公布日期
1984.03.16
申请号
NZ19810197843
申请日期
1981.07.27
申请人
PHILIPS NV
发明人
BARNES H.E.
分类号
H04M1/00;G10K1/064;(IPC1-7):H04M1/02;G10K1/06
主分类号
H04M1/00
代理机构
代理人
主权项
地址
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