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ZA7205068B
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Improvements in or relating to hydraulic valves
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US2458139A
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Filter or strainer for liquids
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US2572436A
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Means for measuring and recording the filtrability of fluids
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GB254870A
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Improvements in automatic self-closing valves
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GB258027A
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Improved automatic self-closing valve
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GB240014A
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A positive liquid-meter
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GB216563A
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An improved hydraulic jet dispersal nozzle
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GB168524A
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A closure device for discharge orifices in reservoirs, dams, and the like
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GB149840A
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Improvements in operating gear for sluice gates
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GB149526A
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Improvements in sills for sluice gates
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GB151437A
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Improvements in sluice gates
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GB151783A
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Improvements in sluice-gates
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GB151782A
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Device for facilitating the repair of sluice-gate sills
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GB136080A
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Improvements in connection with Self-closing Sluice Valves.
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CA455693A
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Filter or strainer for liquids
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CA803400A
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Liquid-ejecting nozzle
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CA509947A
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Filtrability recorder
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CA457684A
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Means for measuring and recording the filtrability of fluids
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CA659315A
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Method of and apparatus for preventing blinding of micro-filters
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