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发明名称
élément semeur de précision
摘要
申请公布号
FR1076308(A)
申请公布日期
1954.10.26
申请号
FRD1076308
申请日期
1953.03.09
申请人
ETABLISSEMENTS BEAUVAIS ET ROBIN
发明人
分类号
A01C7/04
主分类号
A01C7/04
代理机构
代理人
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