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3423022
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Patent number 3,423,022
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Issue date Jan 21, 1969
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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3312401
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Patent number 3,312,401
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Issue date Apr 4, 1967
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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3104826
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Patent number 3,104,826
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Issue date Sep 24, 1963
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2964812
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Patent number 2,964,812
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Issue date Dec 20, 1960
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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2774627
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Patent number 2,774,627
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Issue date Dec 18, 1956
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
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2721717
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Patent number 2,721,717
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Issue date Oct 25, 1955
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H01 - BASIC ELECTRIC ELEMENTS
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2592609
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Patent number 2,592,609
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2585253
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Patent number 2,585,253
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Issue date Feb 12, 1952
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1875821
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1811572
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Patent number 1,811,572
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1230290
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