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发明名称
Apparatus for the production of magnetic sound tape
摘要
申请公布号
US2702522(A)
申请公布日期
1955.02.22
申请号
US19500201982
申请日期
1950.12.21
申请人
AUDIO DEVICES, INC.
发明人
SPEED WILLIAM C.;DWYER JAMES J.
分类号
G11B5/84;G11B5/842
主分类号
G11B5/84
代理机构
代理人
主权项
地址
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