Improvements in or relating to regulators for nozzles
US2844408A
Nozzles
GB772319A
Improvements in or relating to devices for admixing liquids
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Improvements in or relating to mixing devices
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Dry powder for fire extinguishing purposes
GB725037A
Improvements in or relating to fire-extinguishing apparatus
GB692070A
Improvements in or relating to a regulating arrangement for controlling the delivery of an auxiliary liquid into a main duct through which a main liquid flows under pressure
GB702666A
Improvements in or relating to fire-extinguishing apparatus
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Feeding apparatus for mixing a liquid with another liquid flowing under pressure