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发明名称
Perfectionnements aux concasseurs de matériaux
摘要
申请公布号
FR42337(E)
申请公布日期
1933.07.11
申请号
FRD42337
申请日期
1932.02.01
申请人
发明人
ROCH JEAN-BAPTISTE
分类号
B02C1/04
主分类号
B02C1/04
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