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Device for golf practicing
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Patent number 4,852,882
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Issue date Aug 1, 1989
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Nitta Industries Corporation
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Kazuhiko Otsuka
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G02 - OPTICS
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Air cleaner
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Patent number 4,846,859
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Issue date Jul 11, 1989
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Nitta Co., Ltd.
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Koji Nobiraki
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F24 - HEATING RANGES VENTILATING
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Air cleaner
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Patent number 4,790,863
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Issue date Dec 13, 1988
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Nitta Co., Ltd.
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Koji Nobiraki
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F24 - HEATING RANGES VENTILATING