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发明名称
Telephone support
摘要
申请公布号
US2895703(A)
申请公布日期
1959.07.21
申请号
US19570692126
申请日期
1957.10.24
申请人
BRITO PEREZ JOSE
发明人
PEREZ JOSE BRITO
分类号
H04M1/11
主分类号
H04M1/11
代理机构
代理人
主权项
地址
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