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Valve apparatus
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Patent number 4,214,727
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Issue date Jul 29, 1980
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Martin Baram
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Disc brake actuator
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Patent number 4,077,499
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Issue date Mar 7, 1978
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Martin Baram
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Weir in a path of conveyance
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Patent number 4,009,822
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Issue date Mar 1, 1977
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Escher Wyss Limited
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Hans Zurrer
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Path of conveyance with membrane
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Patent number 3,997,103
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Issue date Dec 14, 1976
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Escher Wyss Limited
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Martin Baram
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B04 - CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL...
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Centrifuge rotor
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Patent number 3,997,106
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Issue date Dec 14, 1976
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F. L. Smidth & Co.
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Martin Baram
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B04 - CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL...