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经营范围
发明名称
Packer drill
摘要
申请公布号
US2221909(A)
申请公布日期
1940.11.19
申请号
US19390256796
申请日期
1939.02.16
申请人
CLANIN LINDLEY J
发明人
CLANIN LINDLEY J.
分类号
A01C7/08
主分类号
A01C7/08
代理机构
代理人
主权项
地址
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