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Hitachi, JP
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last 30 patents
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Patent Grant
Air conditioner and heat exchanger used therein
Patent number
5,181,392
Issue date
Jan 26, 1993
Hitachi Ltd.
Masaaki Itoh
F24 - HEATING RANGES VENTILATING
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Patent Grant
Gas turbine cooled blade
Patent number
4,786,233
Issue date
Nov 22, 1988
Hitachi, Ltd.
Mitsutaka Shizuya
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES