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发明名称
Land leveler
摘要
申请公布号
US2488187(A)
申请公布日期
1949.11.15
申请号
US19470756018
申请日期
1947.06.20
申请人
HABERMAN RICHARD F
发明人
HABERMAN RICHARD F.
分类号
A01B31/00;E02F3/76
主分类号
A01B31/00
代理机构
代理人
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