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发明名称
摘要
申请公布号
JPH0263240(B2)
申请公布日期
1990.12.27
申请号
JP19810117518
申请日期
1981.07.27
申请人
RICOH ELEMEX CORP
发明人
KATSUOKA RITSU
分类号
G10L19/00;H04B14/06
主分类号
G10L19/00
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