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经营范围
发明名称
A COMMUNICATION ADAPTOR DEVICE
摘要
申请公布号
GB8900761(D0)
申请公布日期
1989.03.08
申请号
GB19890000761
申请日期
1989.01.13
申请人
RICOH COMPANY LTD
发明人
分类号
H04M11/00;H04N1/00;H04N1/32;(IPC1-7):H04N1/42
主分类号
H04M11/00
代理机构
代理人
主权项
地址
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