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经营范围
发明名称
Mine roof jack
摘要
申请公布号
US2068491(A)
申请公布日期
1937.01.19
申请号
US19360062820
申请日期
1936.02.07
申请人
TEMPLETON, KENLY & CO., LIMITED
发明人
JAKOUBEK FRANK J.;GAHL WILLIAM E.
分类号
B66F3/08;E21D15/60
主分类号
B66F3/08
代理机构
代理人
主权项
地址
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