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Crystal for a telephone watch
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Patent number 7,167,689
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Issue date Jan 23, 2007
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Asulab S.A.
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Jean-Claude Martin
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Analogue and digital display
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Patent number 4,400,092
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Issue date Aug 23, 1983
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Centre Electronique Horloger S.A.
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Christian Piquet
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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Timing device
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Patent number 4,187,518
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Issue date Feb 5, 1980
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Centre Electronique Horloger S.A.
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Jean-Claude Martin
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G04 - HOROLOGY
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Quartz thermometer
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Patent number 4,039,969
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Issue date Aug 2, 1977
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Centre Electronique Horloger S.A.
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Jean-Claude Martin
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G01 - MEASURING TESTING
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