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发明名称
Control system for phonographs
摘要
申请公布号
US2298727(A)
申请公布日期
1942.10.13
申请号
US19400370920
申请日期
1940.12.20
申请人
DICTAPHONE CORPORATION;SHERMAN HAROLD T
发明人
CORPORATION DICTAPHONE;SHERMAN HAROLD T.
分类号
G11B25/02
主分类号
G11B25/02
代理机构
代理人
主权项
地址
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