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经营范围
发明名称
Apparatus for removing shale, coal, and like from gravel
摘要
申请公布号
US2336991(A)
申请公布日期
1943.12.14
申请号
US19410393048
申请日期
1941.05.12
申请人
LEVEKE CHESTER I
发明人
LEVEKE CHESTER I.
分类号
B03B5/26
主分类号
B03B5/26
代理机构
代理人
主权项
地址
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