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2023
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Invention
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Drill bit and method for drilling hole for pipe to be installed in ground.
Here is presented a d... |
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Invention
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Drill bit and method for drilling hole for pipe to be installed in ground. Here is presented a dr... |
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2020
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Invention
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Drilling unit. A drilling unit for drilling a hole, wherein the drilling unit comprising a drilli... |
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2019
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Invention
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Arrangement and method for installing casing. An arrangement and a method for installing a casing... |
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2018
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Invention
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Arrangement and method for installing casing. An arrangement and method for installing a casing. ... |
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2016
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Invention
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Drilling device. A drilling device for drilling a hole in the ground and/or rock and having in it... |
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2015
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Invention
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Hammering and rotatable drill bit. A hammering and rotatable drill bit, which is meant for ground... |
