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This page displays all 「FI」 in main group E21C41/00. |
HB:Handbook | ||||
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CC:Concordance | |||||
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Methods of underground or surface mining (E21C 45/00 takes precedence); Layouts therefor (for peat E21C 49/00) [5] | HB | CC | 2D065 | |
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.Methods of underground mining (winning machines therefor E21C 25/00-E21C 39/00); Layouts therefor [5] | HB | CC | 2D065 | |
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..for brown or hard coal [5] | HB | CC | 2D065 | |
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..for rock salt or potash salt [5] | HB | CC | 2D065 | |
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..for ores, e.g. mining placers [5] | HB | CC | 2D065 | |
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..for oil-bearing deposits [5] | HB | CC | 2D065 | |
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.Methods of surface mining (machines for obtaining, or the removal of, materials in open-pit mines E21C 47/00); Layouts therefor [5] | HB | CC | 2D065 | |
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..for brown or hard coal [5] | HB | CC | 2D065 | |
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..for ores, e.g. mining placers [5] | HB | CC | 2D065 | |
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.Reclamation of surface-mined areas (machines or methods for treating or working soil for agricultural purposes A01B 77/00, A01B 79/00; machines for back-filling E02F 5/22) [5] | HB | CC | 2D065 | |