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发明名称
Method of mixing sound records
摘要
申请公布号
US2303456(A)
申请公布日期
1942.12.01
申请号
US19400312978
申请日期
1940.01.08
申请人
HARTFORD NATIONAL BANK AND TRUST COMPANY
发明人
HARDENBERG JAN JESAYAS
分类号
H04H60/04
主分类号
H04H60/04
代理机构
代理人
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