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发明名称
An improved apparatus for grinding and sharpening the cutting edges of blades of irregular shape
摘要
申请公布号
GB323324(A)
申请公布日期
1930.01.02
申请号
GB19280034151
申请日期
1928.11.21
申请人
WILLIAM HAYDN HAVENHAND
发明人
分类号
B24B3/40
主分类号
B24B3/40
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代理人
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