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This page displays all 「FI」 in main group E21B31/00. |
HB:Handbook | ||||
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CC:Concordance | |||||
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Fishing for or freeing objects in boreholes or wells [2006.01] | HB | CC | 2D129 | |
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.Freeing by flushing [3] | HB | CC | 2D129 | |
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.using magnetic means [3] | HB | CC | 2D129 | |
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.using junk baskets or the like [3] | HB | CC | 2D129 | |
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.using impact means for releasing stuck parts, e.g. jars [2006.01] | HB | CC | 2D129 | |
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..hydraulically operated [3] | HB | CC | 2D129 | |
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.Grappling tools, e.g. tongs or grabs | HB | CC | 2D129 | |
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..with means deflecting the direction of the tool, e.g. by use of knuckle joints [2006.01] | HB | CC | 2D129 | |
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..combined with cutting or destroying means [2006.01] | HB | CC | 2D129 | |
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..gripping externally, e.g. overshot [3] | HB | CC | 2D129 | |
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..gripping internally, e.g. fishing spears [3] | HB | CC | 2D129 | |