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发明名称
KEY TELEPHONE SYSTEM
摘要
申请公布号
JPS57129565(A)
申请公布日期
1982.08.11
申请号
JP19810015146
申请日期
1981.02.04
申请人
NIHON TSUUSHIN KOGYO KK;NIPPON DENSHIN DENWA KOSHA
发明人
MITO MICHIO;SHINOI AKIRA;OGAWA MASAKI
分类号
H04Q3/58;H04M9/00;H04Q3/00
主分类号
H04Q3/58
代理机构
代理人
主权项
地址
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