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发明名称
Устройство для определения точности хода часов
摘要
申请公布号
SU68778(A1)
申请公布日期
1946.11.30
申请号
SU19450050349
申请日期
1945.02.09
申请人
URIN V.D.
发明人
URIN V.D.
分类号
G04D7/12
主分类号
G04D7/12
代理机构
代理人
主权项
地址
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