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Jump start for ram drilling rigs
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Ram boring machine with movable chisel
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Reversible impact-operated boring tool
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Tracto Technik |
Reversible ram boring machine
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Method and apparatus for subsurface exploration
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Drilling head and drilling method for a horizontal drilling machine
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Percussion drill head and a method for horizontal drilling with a percussion device
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wellhead
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Device for drilling in soil and method for maintaining a device for drilling in soil
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