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DE2740803A1
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PROCESS FOR ERECTING A STRUCTURE IN UNDERGROUND CONSTRUCTION THROUGH HORIZONTAL EXHAUST
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ES324760A1
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Procedure for manufacturing beams with soil of armed and-or pretensed concrete. (Machine-translation by Google Translate, not legally binding)
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GB728231A
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An improved equipment for bending simultaneously two rigid metal reinforcements
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IE19951L
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Pre-stressed reinforced concrete beams
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GB696097A
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Improvements in or relating to pre-stressed reinforced concrete beams
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CA557210A
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Method of bending reinforcement beams
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CA876220A
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Method for manufacturing a girder with a web of reinforced and/or prestressed concrete
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CA536672A
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Pre-stressed reinforced concrete beams
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