DE1039952B
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Driving head equipped with flushing slots for horizontal or inclined driving of a pipe into the ground
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DE958369C
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Driving head for the horizontal or inclined driving of a pipe into the ground
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DE949729C
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Driving head for the horizontal or inclined driving of a pipe into the ground
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DE916940C
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Device for the horizontal advance of filter pipes in water-bearing, but fixed layers of earth
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DE965750C
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Conveyor and flushing device for water extraction systems
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DE831676C
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Process and device for the extraction of groundwater or infiltration water
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DE593620C
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Device for the production of concrete stakes
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