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发明名称
METHOD FOR SWITCHING TALKING STATE OF LOUNDSPEAKER TELEPHONE SET
摘要
申请公布号
JPH02309851(A)
申请公布日期
1990.12.25
申请号
JP19890132158
申请日期
1989.05.25
申请人
FUJITSU LTD
发明人
FUJII KENSAKU;OGA TOSHIRO;MASUDA HIROYUKI;SATOU MOMOTAKA;HOSHINO TSUTOMU
分类号
H04M1/60
主分类号
H04M1/60
代理机构
代理人
主权项
地址
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