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摘要
申请公布号
SU66730(A1)
申请公布日期
1945.11.30
申请号
SU19450001917
申请日期
1945.05.10
申请人
VASILEV A.M.
发明人
VASILEV A.M.
分类号
E05B37/12;E05B63/14
主分类号
E05B37/12
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