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ES2190902A1
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ARTICULATED CONDUCT FOR THE ACCOMMODATION OF UNDERGROUND DRIVES.
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PL370229A1
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Underground pipe and cable gallery which can be inspected
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US2005271475A1
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Inspectable tunnel for underground pipes and cables
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ES2184629A1
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MODULAR ARCHETTE FOR UNDERGROUND CHANNELS.
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ES2189633A1
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MODULAR CONTAINER OF WASTE, PANELABLE AND EXPANDABLE AND ITS ASSEMBLY PROCEDURE.
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EP0780518A1
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Protective elements for metallic guard-rails in roads
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ES2124159A1
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Protection piece for road metal elements.
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EP0564393A1
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Signalling, sign disposing and impact-security system on temporary use barrier for roads, motorways and the like
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CA2050674A1
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Improvements in safety barriers for roads
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ES2024280A6
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Improvements in safety barriers for roads.
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ES2019780A6
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Procedure for making in-situ manholes for underground electric and telephone lines ductwork.
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ES2005324A6
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A process to manufacture "in situ" safety barriers for roads.
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