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经营范围
发明名称
Improvements in or relating to tension control in recording mechanisms
摘要
申请公布号
GB1116341(A)
申请公布日期
1968.06.06
申请号
GB19630034711
申请日期
1963.09.03
申请人
S. DAVALL & SONS LIMITED;ROLAND WILLIAM GORDON SOMERVELL
发明人
SOMERVELL ROLAND WILLIAM GORDON;HELLIWELL ALAN JAMES
分类号
G11B15/43
主分类号
G11B15/43
代理机构
代理人
主权项
地址
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