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Unloader valve for cryogenic refrigerator
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Patent number 4,912,932
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Issue date Apr 3, 1990
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Cryodynamics, Inc.
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Stephen F. Malaker
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F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
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Cryogenic refrigerator
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Patent number 4,877,434
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Issue date Oct 31, 1989
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Cryodynamics, Inc.
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Stephen F. Malaker
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F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
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Vehicle air conditioner
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Patent number 4,843,826
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Issue date Jul 4, 1989
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Cryodynamics, Inc.
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Stephen F. Malaker
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B60 - VEHICLES IN GENERAL
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Cam drive for cryogenic refrigerator
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Patent number 4,796,430
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Issue date Jan 10, 1989
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Cryodynamics, Inc.
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Stephen F. Malaker
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F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...