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发明名称
Verfahren zum Kopierbarmachen von Schwingungsaufzeichnungen in Amplitudenschrift.
摘要
申请公布号
CH233503(A)
申请公布日期
1944.07.31
申请号
CHD233503
申请日期
1941.01.04
申请人
N. V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
GLOEILAMPENFABRIEKEN N. V. PHILIPS'
分类号
G11B11/00
主分类号
G11B11/00
代理机构
代理人
主权项
地址
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