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经营范围
发明名称
MANUAL TYPE SUCCESSIVE CALLING SYSTEM
摘要
申请公布号
JPH0220161(A)
申请公布日期
1990.01.23
申请号
JP19880168807
申请日期
1988.07.08
申请人
NEC ENG LTD
发明人
SAITO RYUICHI
分类号
H04M3/44;H04M3/42
主分类号
H04M3/44
代理机构
代理人
主权项
地址
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