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发明名称
Vibration absorber
摘要
申请公布号
US2025100(A)
申请公布日期
1935.12.24
申请号
US19320631838
申请日期
1932.09.06
申请人
GILL ELDRIDGE B;DANIELSON GUY O
发明人
GILL ELDRIDGE B.;DANIELSON GUY O.
分类号
E21B11/02;E21B17/07;E21B31/107
主分类号
E21B11/02
代理机构
代理人
主权项
地址
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