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Cleaning device with aerodynamic oscillator
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Patent number 9,173,535
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Issue date Nov 3, 2015
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Koninklijke Philips N.V.
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Jan Frederik Suijver
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
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1763397
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Patent number 1,763,397
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Issue date Jun 10, 1930
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
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1627377
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Patent number 1,627,377
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Issue date May 3, 1927
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
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1351210
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Patent number 1,351,210
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Issue date Aug 31, 1920
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...