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发明名称
IR-LESS TELEPHONE SYSTEM
摘要
申请公布号
JPH03162195(A)
申请公布日期
1991.07.12
申请号
JP19890303887
申请日期
1989.11.21
申请人
SEKISUI CHEM CO LTD
发明人
TANIGUCHI TERUYUKI;KAWAZOE YUZURU;KAKEYA NOBUKAZU
分类号
H04M1/00;H04Q3/58
主分类号
H04M1/00
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代理人
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