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Lavatory flushing device
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Patent number 4,813,085
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Issue date Mar 21, 1989
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Georg Rost & Soehne, Armaturenfabrik GmbH & Co. KG.
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Reiner Strangfeld
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E03 - WATER SUPPLY SEWERAGE
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Self-closing valve fitting
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Patent number 4,676,477
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Issue date Jun 30, 1987
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Georg Rost & Sohne Armaturenfabric GmbH & Co. KG
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Reiner Strangfeld
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Self closing valve
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Patent number 4,577,829
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Issue date Mar 25, 1986
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Georg Rost und Soehne Armaturenfabrik GmbH und Co. KG.
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Reiner Strangfeld
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E03 - WATER SUPPLY SEWERAGE
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Toilet-tank discharge valve
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Patent number 4,571,753
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Issue date Feb 25, 1986
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Georg Rost & Sohne Armaturenfabrik GmbH & Co Kg
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Reiner Strangfeld
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E03 - WATER SUPPLY SEWERAGE
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