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Ink droplet expelling apparatus
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Patent number 4,672,398
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Issue date Jun 9, 1987
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Hitachi Ltd.
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Tadashi Kuwabara
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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Ink jet printing apparatus
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Patent number 4,424,520
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Issue date Jan 3, 1984
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Hitachi, Ltd.
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Yasumasa Matsuda
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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Drop jet apparatus
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Patent number 4,364,070
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Issue date Dec 14, 1982
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Hitachi, Ltd.
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Yasumasa Matsuda
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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Ink-jet printing apparatus
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Patent number 4,350,989
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Issue date Sep 21, 1982
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Hitachi, Ltd.
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Syoji Sagae
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS