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发明名称
Synchronous device
摘要
申请公布号
US2023505(A)
申请公布日期
1935.12.10
申请号
US19290415537
申请日期
1929.12.20
申请人
COMPAGNIE POUR LA FABRICATION DES COMPTEURS ET MATERIEL D'USINES A GAZ
发明人
BARTHELEMY RENE
分类号
H02P5/50;H04N5/04;H04N5/06;H04N5/073;H04N5/12
主分类号
H02P5/50
代理机构
代理人
主权项
地址
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