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Extrusion device
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Patent number 5,153,009
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Issue date Oct 6, 1992
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Hermann Berstorff Maschinenbau GmbH
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Jurgen Voigt
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Filling level monitoring device
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Patent number 4,484,878
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Issue date Nov 27, 1984
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Hermann Berstorff Maschinenbau GmbH
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Dietmar Anders
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Granulating apparatus
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Patent number 4,249,879
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Issue date Feb 10, 1981
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Hermann Berstorff Maschinenbau GmbH
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Dietmar Anders
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL