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US2010299994A1
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Method and device for caring for vegetation layers
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DE102006008698A1
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Method and device for underground installation of membrane hoses
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DE10137147A1
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System for cultivating vegetation layers uses buried tube membranes that are valve-controlled
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DE10001578A1
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Sound barrier for traffic routes
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DE10001577A1
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Sound barrier for traffic routes
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DE19921405A1
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Process and device for the disposal of decayable waste
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DE3914257A1
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Vegetation-supporting element system
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DE3016145A1
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Plant and weed cutting and destruction system - uses electrically-heated cutter blades, or focussed energy beams, brought into contact with weeds etc.
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DE2430621A1
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Protection for plant roots before planting - roots ar surrounded by expanded heat-insulating material which is also bio-degradable
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