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发明名称
Electric pick-up device
摘要
申请公布号
US1835072(A)
申请公布日期
1931.12.08
申请号
US19290411317
申请日期
1929.12.03
申请人
STANLEY MCCLATCHIE
发明人
MCCLATCHIE STANLEY
分类号
H04R11/08;H04R11/10
主分类号
H04R11/08
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