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发明名称
Self-supporting operator's headset
摘要
申请公布号
US3280273(A)
申请公布日期
1966.10.18
申请号
US19630308240
申请日期
1963.09.11
申请人
THE TELEX CORPORATION
发明人
FLYGSTAD DEAN W.;SELL ROBERT L.
分类号
H04M1/05
主分类号
H04M1/05
代理机构
代理人
主权项
地址
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