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发明名称
Crible avec nervures.
摘要
申请公布号
BE597640(A1)
申请公布日期
1961.03.15
申请号
BE19600597640
申请日期
1960.11.30
申请人
FRIEDRICH GRAEPEL
发明人
FRIEDRICH GRAEPEL
分类号
(IPC1-7):A01F
主分类号
(IPC1-7):A01F
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代理人
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