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Pneumatic conveyor for grain
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Patent number 4,583,883
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Issue date Apr 22, 1986
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Engelbrecht & Lemmerbrock GmbH & Co.
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Hermann Johanning
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Gastight high-rise silos
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Patent number 4,487,542
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Issue date Dec 11, 1984
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Engelbrecht & Lemmerbrock GmbH & Co.
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Hermann Johanning
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Pneumatic suction devices
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Patent number 4,413,933
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Issue date Nov 8, 1983
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Engelbrecht & Lemmerbrock GmbH & Co.
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Theodor Hesse
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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High-rise silos
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Patent number 4,350,468
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Issue date Sep 21, 1982
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Engelbrecht & Lemmerbrock GmbH & Co.
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Bernhard Julke
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL