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Exposure system
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Patent number 5,227,838
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Issue date Jul 13, 1993
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Matsushita Electric Industrial Co., Ltd.
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Yoshito Nakanishi
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Narrow-band laser apparatus
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Patent number 5,150,370
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Issue date Sep 22, 1992
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Matsushita Electric Industrial Co., Ltd.
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Nobuaki Furuya
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Narrow-band laser apparatus
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Patent number 4,985,898
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Issue date Jan 15, 1991
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Matsushita Electric Industrial Co., Ltd.
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Nobuaki Furuya
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Ultrasonic diagnostic apparatus
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Patent number 4,979,513
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Issue date Dec 25, 1990
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Matsushita Electric Industrial Co., Ltd.
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Ikuo Sakai
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Ultrasonic examination apparatus
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Patent number 4,844,082
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Issue date Jul 4, 1989
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Matsushita Electric Industrial Co., Ltd.
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Hiroshi Fukukita
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G01 - MEASURING TESTING
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Surface acoustic wave filter
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Patent number 4,309,679
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Issue date Jan 5, 1982
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Matsushita Electric Industrial Company, Limited
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Nobuaki Furuya
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H03 - BASIC ELECTRONIC CIRCUITRY