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发明名称
LOUDSPEAKER MECHANISM AND WIRELESS LOUDSPEAKER TELEPHONE SET
摘要
申请公布号
JPH03133238(A)
申请公布日期
1991.06.06
申请号
JP19890272235
申请日期
1989.10.19
申请人
NEC CORP;NEC ENG LTD
发明人
SUGAYA NAOKI;TAMURA NORIHISA
分类号
H04M1/00;H04M1/60
主分类号
H04M1/00
代理机构
代理人
主权项
地址
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