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发明名称
Sound head for thin films
摘要
申请公布号
US2513721(A)
申请公布日期
1950.07.04
申请号
US19460666768
申请日期
1946.05.02
申请人
HARTFORD NATIONAL BANK AND TRUST COMPANY
发明人
HARINGX JOHANNES ADRIANUS
分类号
G11B15/60
主分类号
G11B15/60
代理机构
代理人
主权项
地址
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