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发明名称
COMMUNICATION EQUIPMENT
摘要
申请公布号
JPH0541735(A)
申请公布日期
1993.02.19
申请号
JP19910219375
申请日期
1991.08.06
申请人
RICOH CO LTD
发明人
MINAGAWA HIROYUKI
分类号
H04M1/274;H04M1/56;H04M1/57
主分类号
H04M1/274
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代理人
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