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发明名称
Composite magnetic recording tape
摘要
申请公布号
US2691072(A)
申请公布日期
1954.10.05
申请号
US19490085045
申请日期
1949.04.01
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
MATHES ROBERT C.
分类号
G11B5/02;G11B5/64
主分类号
G11B5/02
代理机构
代理人
主权项
地址
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