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Keshavan Niranjan
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last 30 patents
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Patent Grant
Impeller
Patent number
RE34386
Issue date
Sep 21, 1993
National Research Development Corporation
John F. Davidson
416 - Fluid reaction surfaces
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Patent Grant
Impellers
Patent number
4,799,862
Issue date
Jan 24, 1989
National Research Development Corporation
John F. Davidson
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL