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US3289839A
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Filtering equipment for fluids
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US3221884A
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Apparatus for removing a surface layer from a body of liquid
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US3143137A
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Quick-acting biased valved coupling for fluid pipe
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US3113328A
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Flexible buoyant element
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US2854140A
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Apparatus for automatic clearing of filters in use
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US2953161A
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Apparatus for dispensing liquid
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US2883056A
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Filter apparatus and filter cartridges therefor
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US2778391A
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Coupling with cut-off device for coupling pipeways with pipes or outlets of tanks and other receivers
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US2817205A
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Portable power operated tool
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US2752001A
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Filter for gaseous fluids
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US2754973A
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Filter cartridge for gaseous and liquid fluids
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US2767851A
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Fluid filter of the columnar type
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US2703190A
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Apparatus for measuring and delivering liquids
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US2474319A
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Coupling for piping
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US2445628A
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Insubmersible pipe line
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US2314237A
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Laminated sole construction
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US2445234A
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Velocity indicator
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US2434428A
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Self-closing filling nozzle
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US2452256A
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Fluid handling mechanism
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US2175304A
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Liquid transfer mechanism
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