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Infinitely variable pumps and compressors
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Patent number 8,992,370
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Issue date Mar 31, 2015
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Differential Dynamics Corporation
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Kyung Soo Han
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F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
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Infinitely variable direction control
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Patent number 8,986,149
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Issue date Mar 24, 2015
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Differential Dynamics Corporation
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Kyung Soo Han
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F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
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3874252
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Patent number 3,874,252
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Issue date Apr 1, 1975
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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3125901
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Patent number 3,125,901
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Issue date Mar 24, 1964
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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2580955
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Patent number 2,580,955
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Issue date Jan 1, 1952
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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1764961
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Patent number 1,764,961
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Issue date Jun 17, 1930
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...