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经营范围
发明名称
Synchronizing system
摘要
申请公布号
US1845368(A)
申请公布日期
1932.02.16
申请号
US19290415234
申请日期
1929.12.19
申请人
RADIO CORPORATION
发明人
MARK JAN VAN DER
分类号
H02J3/42
主分类号
H02J3/42
代理机构
代理人
主权项
地址
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