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发明名称
Pea-grading machine
摘要
申请公布号
US1771996(A)
申请公布日期
1930.08.05
申请号
US19290400246
申请日期
1929.10.17
申请人
CHAPMAN FRANK D
发明人
CHAPMAN FRANK D.
分类号
B07B1/22
主分类号
B07B1/22
代理机构
代理人
主权项
地址
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