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发明名称
Lawn-mower sharpener
摘要
申请公布号
US1745439(A)
申请公布日期
1930.02.04
申请号
US19270214877
申请日期
1927.08.23
申请人
NASH REUEL C
发明人
NASH REUEL C.
分类号
B24B3/42
主分类号
B24B3/42
代理机构
代理人
主权项
地址
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