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发明名称
Support and traction of implements
摘要
申请公布号
US2445472(A)
申请公布日期
1948.07.20
申请号
US19440551042
申请日期
1944.08.24
申请人
BUTCH ADAM F
发明人
BUTCH ADAM F.
分类号
E02F3/76
主分类号
E02F3/76
代理机构
代理人
主权项
地址
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