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Thermal recorder
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Patent number D299435
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Issue date Jan 17, 1989
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Sumitomo Electric Industries, Ltd.
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Kazuhiro Kuwa
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D10 - Measuring, testing, or signalling instruments
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Patient monitor
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Patent number 4,779,199
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Issue date Oct 18, 1988
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Sumitomo Electric Industries, Ltd.
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Kiwamu Yoneda
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Percutaneous gas monitor
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Patent number D296823
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Issue date Jul 19, 1988
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Sumitomo Electric Industries, Ltd.
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Kazuhiro Kuwa
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D24 - Medical and laboratory equipment