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发明名称
Method of making sound records
摘要
申请公布号
US1962310(A)
申请公布日期
1934.06.12
申请号
US19300419941
申请日期
1930.01.10
申请人
EASTMAN KODAK COMPANY
发明人
JONES LOYD A.
分类号
G11B7/251
主分类号
G11B7/251
代理机构
代理人
主权项
地址
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