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发明名称
Lawn mower sharpener attachment
摘要
申请公布号
US1958947(A)
申请公布日期
1934.05.15
申请号
US19320590171
申请日期
1932.02.01
申请人
WILLIAM HOLLIDAY
发明人
HOLLIDAY WILLIAM
分类号
B24B3/42
主分类号
B24B3/42
代理机构
代理人
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地址
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