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发明名称
Центральный секторный затвор
摘要
申请公布号
SU34925(A1)
申请公布日期
1934.02.28
申请号
SU19330122925
申请日期
1933.01.28
申请人
BARON YU.G.
发明人
BARON YU.G.
分类号
G03B9/58
主分类号
G03B9/58
代理机构
代理人
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地址
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