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Pulse tube refrigerator
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Patent number 5,845,498
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Issue date Dec 8, 1998
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Aisin Seiki Kabushiki Kaisha
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Takayuki Matsui
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F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
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Multistage type pulse tube refrigerator
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Patent number 5,711,156
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Issue date Jan 27, 1998
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Aisin Seiki Kabushiki Kaisha
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Takayuki Matsui
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F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
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Pulse tube heat engine
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Patent number 5,435,136
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Issue date Jul 25, 1995
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Aisin Seiki Kabushiki Kaisha
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Yoshihiro Ishizaki
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F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
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Pulse tube refrigerating system
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Patent number 5,269,147
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Issue date Dec 14, 1993
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Aisin Seiki Kabushiki Kaisha
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Yoshihiro Ishizaki
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F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...