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发明名称
Phonograph pickup
摘要
申请公布号
US2640888(A)
申请公布日期
1953.06.02
申请号
US19490126005
申请日期
1949.11.07
申请人
COMBS EDWARD E
发明人
COMBS EDWARD E.
分类号
H04R9/12
主分类号
H04R9/12
代理机构
代理人
主权项
地址
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