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发明名称
Rod cleaner
摘要
申请公布号
US2126671(A)
申请公布日期
1938.08.09
申请号
US19360066726
申请日期
1936.03.02
申请人
SLAUGENHOP GEORGE E
发明人
SLAUGENHOP GEORGE E.
分类号
E21B33/08
主分类号
E21B33/08
代理机构
代理人
主权项
地址
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