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发明名称
Recording means
摘要
申请公布号
US1765051(A)
申请公布日期
1930.06.17
申请号
US19260114119
申请日期
1926.06.07
申请人
COLUMBIA PHONOGRAPH COMPANY, INC.
发明人
CAPPS FRANK L.
分类号
H04R11/08
主分类号
H04R11/08
代理机构
代理人
主权项
地址
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