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发明名称
Grading machine
摘要
申请公布号
US2355131(A)
申请公布日期
1944.08.08
申请号
US19430480245
申请日期
1943.03.23
申请人
FRANK M. GORE
发明人
KOLLEDA DELMAR
分类号
B07B1/30
主分类号
B07B1/30
代理机构
代理人
主权项
地址
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