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发明名称
Improvements in and relating to spools for magnetic tape recorders
摘要
申请公布号
GB738542(A)
申请公布日期
1955.10.12
申请号
GB19530025227
申请日期
1953.09.11
申请人
WEBSTER-CHICAGO CORPORATION
发明人
分类号
G11B23/037
主分类号
G11B23/037
代理机构
代理人
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地址
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