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发明名称
Land leveler
摘要
申请公布号
US2325875(A)
申请公布日期
1943.08.03
申请号
US19410409087
申请日期
1941.08.30
申请人
LOUIS OSWALD
发明人
OSWALD LOUIS
分类号
A01B31/00
主分类号
A01B31/00
代理机构
代理人
主权项
地址
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