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经营范围
发明名称
Weed extractor
摘要
申请公布号
US2157915(A)
申请公布日期
1939.05.09
申请号
US19370154860
申请日期
1937.07.21
申请人
OLSON ERIC A
发明人
OLSON ERIC A.
分类号
A01B1/16
主分类号
A01B1/16
代理机构
代理人
主权项
地址
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