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GB777318A
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Improvements in or relating to a process for pre-stressing concrete and like structures
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US2912861A
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Method of and apparatus for the measurement and the control of the difference between two physical quantities
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US2880612A
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Measurement of physical quantities with the aid of apparatus which converts the saidquantities into variations of oscillation frequency
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US2863292A
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Reinforced and stabilized dam structure
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GB721517A
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Improvements in or relating to methods and devices for protecting reinforcing cablestensioned after hardening the concrete from corrosion
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GB702126A
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Improvements in methods of and apparatus for reinforcing and stabilizing structures,and particularly dams
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US2720112A
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Device for measuring the tension of wires
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US2666296A
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Dam
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GB635032A
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Thermometric exploring device
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US2604787A
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Acoustic manometer
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US1896810A
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Reenforced and anchored masonry structure
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