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发明名称
Lawn mower sharpener
摘要
申请公布号
US2417373(A)
申请公布日期
1947.03.11
申请号
US19450614908
申请日期
1945.09.07
申请人
MORRISON JAMES S;ARCISZEWSKI FRANK J
发明人
MORRISON JAMES S.;ARCISZEWSKI FRANK J.
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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