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Portable water backpack
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Patent number 9,295,318
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Issue date Mar 29, 2016
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GRIEF FLEXIBLES TRADING HOLDING B.V.
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David Fischer
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A45 - HAND OR TRAVELLING ARTICLES
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3918503
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Patent number 3,918,503
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Issue date Nov 11, 1975
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G07 - CHECKING-DEVICES
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2416732
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Patent number 2,416,732
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Issue date Mar 4, 1947
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A45 - HAND OR TRAVELLING ARTICLES
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2142904
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Patent number 2,142,904
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Issue date Jan 3, 1939
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A45 - HAND OR TRAVELLING ARTICLES