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发明名称
Grading apparatus
摘要
申请公布号
GB2277046(B)
申请公布日期
1996.11.20
申请号
GB19940007672
申请日期
1994.04.18
申请人
TICKHILL ENGINEERING COMPANY LIMITED
发明人
CHRISTOPHER PARKINSON
分类号
A01D17/06;B07B1/10;B07B1/15;(IPC1-7):B07B1/10
主分类号
A01D17/06
代理机构
代理人
主权项
地址
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