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经营范围
发明名称
Film apparatus
摘要
申请公布号
US2213250(A)
申请公布日期
1940.09.03
申请号
US19370174459
申请日期
1937.11.13
申请人
HARTFORD NATIONAL BANK AND TRUST COMPANY
发明人
KOTTE JAN JACOB
分类号
G11B15/50;G11B15/60
主分类号
G11B15/50
代理机构
代理人
主权项
地址
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