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Key cover
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Patent number 10,961,745
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Issue date Mar 30, 2021
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David Frank Borenstein
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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Key cover
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Patent number 10,519,693
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Issue date Dec 31, 2019
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David Frank Borenstein
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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Key cover
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Patent number 10,138,655
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Issue date Nov 27, 2018
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David Frank Borenstein
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
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Magnetic key assembly
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Patent number 9,988,827
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Issue date Jun 5, 2018
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David Frank Borenstein
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES