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发明名称
Sound translating machine
摘要
申请公布号
US2318628(A)
申请公布日期
1943.05.11
申请号
US19400324774
申请日期
1940.03.19
申请人
B. A. PROCTOR COMPANY, INC.
发明人
PROCTOR BARTON A.
分类号
G11B25/04
主分类号
G11B25/04
代理机构
代理人
主权项
地址
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