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经营范围
发明名称
Four track sound head mechanism
摘要
申请公布号
GB911910(A)
申请公布日期
1962.11.28
申请号
GB19610032671
申请日期
1961.09.12
申请人
REVERE CAMERA COMPANY
发明人
分类号
G11B5/48
主分类号
G11B5/48
代理机构
代理人
主权项
地址
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