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经营范围
发明名称
Lawn mower sharpener
摘要
申请公布号
US3418757(A)
申请公布日期
1968.12.31
申请号
US19660564214
申请日期
1966.07.11
申请人
JAMES MCEWAN
发明人
MCEWAN JAMES
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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