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发明名称
Improvements in or relating to stone-release devices on tractor-drawn ploughs
摘要
申请公布号
GB1141399(A)
申请公布日期
1969.01.29
申请号
GB19660055082
申请日期
1966.12.08
申请人
KVERNELANDS FABRIKK A/S
发明人
分类号
A01B61/04
主分类号
A01B61/04
代理机构
代理人
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