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发明名称
Base attachment for telephones
摘要
申请公布号
US2283690(A)
申请公布日期
1942.05.19
申请号
US19390292387
申请日期
1939.08.29
申请人
MUNSON WHITNEY K
发明人
MUNSON WHITNEY K.
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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