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发明名称
Telephone accessory
摘要
申请公布号
US3343291(A)
申请公布日期
1967.09.26
申请号
US19650510830
申请日期
1965.12.01
申请人
LEVANG CARMEN W;DAHL NEIL D
发明人
LEVANG CARMEN W.;DAHL NEIL D.
分类号
H04M1/21
主分类号
H04M1/21
代理机构
代理人
主权项
地址
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