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发明名称
Tape recorder indicator attachment
摘要
申请公布号
US2944750(A)
申请公布日期
1960.07.12
申请号
US19570644901
申请日期
1957.03.08
申请人
HALL JR BUFORD C
发明人
JR. BUFORD C. HALL,
分类号
G11B27/34
主分类号
G11B27/34
代理机构
代理人
主权项
地址
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