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发明名称
Machine for grading or sorting by weight
摘要
申请公布号
US2099893(A)
申请公布日期
1937.11.23
申请号
US19350021570
申请日期
1935.05.15
申请人
JOHN OLIVER POWELL
发明人
JONES WILLIAM
分类号
B07C5/18
主分类号
B07C5/18
代理机构
代理人
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