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发明名称
Контрольные часы для сторожей
摘要
申请公布号
SU37914(A1)
申请公布日期
1934.07.31
申请号
SU19330136681
申请日期
1933.10.26
申请人
FETTER V.YU.
发明人
FETTER V.YU.
分类号
G07C1/20
主分类号
G07C1/20
代理机构
代理人
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