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Вакуум-щит
摘要
申请公布号
SU93059(A1)
申请公布日期
1950.11.30
申请号
SU19500432767
申请日期
1950.08.07
申请人
PEN S.S.
发明人
PEN S.S.
分类号
B66C1/02;B28B1/52
主分类号
B66C1/02
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