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发明名称
CONFERENCE TELEPHONE SYSTEM
摘要
申请公布号
JPS57119549(A)
申请公布日期
1982.07.26
申请号
JP19810192676
申请日期
1981.11.30
申请人
PHILIPS' GLOEILAMPENFABRIEKEN NV
发明人
YOBU FURANSHISUKASU PETORUSU FUAN MIRU;ADORIANUSU UIRUHERUMUSU MARIA FUAN DEN ENDEN;TEUNISU ARUNO FUAN HARUREFUERUDO
分类号
H04M3/56
主分类号
H04M3/56
代理机构
代理人
主权项
地址
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