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Horst Wolff
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Hohenschaafftlarn, DE
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last 30 patents
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Valve arrangement
Patent number
4,246,924
Issue date
Jan 27, 1981
Speck Kolbenpumpenfabrik Otto Speck KG
Lutz Droitsch
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...