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经营范围
发明名称
Dredge bucket
摘要
申请公布号
US2195404(A)
申请公布日期
1940.04.02
申请号
US19370137746
申请日期
1937.04.19
申请人
BIRD HOBART M
发明人
BIRD HOBART M.
分类号
E02F3/14
主分类号
E02F3/14
代理机构
代理人
主权项
地址
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