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发明名称
Improvements in or relating to sieves for grading bulbs, tubers and the like, into different sizes
摘要
申请公布号
GB695184(A)
申请公布日期
1953.08.05
申请号
GB19520001792
申请日期
1952.01.22
申请人
SIEBEREN DE VRIES
发明人
分类号
B07B13/00;D06M15/433
主分类号
B07B13/00
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