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发明名称
Tonaufzeichnungstraeger und Verfahren zu seiner Herstellung
摘要
申请公布号
DE910346(C)
申请公布日期
1954.04.29
申请号
DE1950D002040
申请日期
1950.04.09
申请人
DICTAPHONE CORPORATION
发明人
ROWE RICHARD GREGOR;BONA GEORGE BRAVERY
分类号
G11B5/004
主分类号
G11B5/004
代理机构
代理人
主权项
地址
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