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Wristwatch
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Patent number D424952
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Issue date May 16, 2000
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Eterna S.A. Fabrique D'Horlogerie
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Ferdinand Alexander Porsche
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D10 - Measuring, testing, or signalling instruments
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Wristwatch
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Patent number D408301
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Issue date Apr 20, 1999
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Eterna S.A. Fabrique D'Horlogerie
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Ferdinand Alexander Porsche
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D10 - Measuring, testing, or signalling instruments
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Eyewear
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Patent number D392661
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Issue date Mar 24, 1998
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Bausch & Lomb Incorporated
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Ferdinand Alexander Porsche
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D16 - Photography and optical equipment
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Portable measuring device
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Patent number 4,522,061
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Issue date Jun 11, 1985
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Metrawatt GmbH
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Karl Hochreuther
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G01 - MEASURING TESTING
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