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发明名称
Perfectionnements aux engins à bourrelet libre
摘要
申请公布号
FR771568(A)
申请公布日期
1934.10.12
申请号
FRD771568
申请日期
1933.07.10
申请人
发明人
DAIIL OSCAR;BLACK WILLIAM FORSYTH
分类号
A01K73/02
主分类号
A01K73/02
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