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Ritu Goel
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Lincoln, RI, US
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Patents Grants
last 30 patents
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Patent Grant
Integral valve effect respirator
Patent number
8,978,655
Issue date
Mar 17, 2015
John Hincks Duke
A62 - LIFE-SAVING FIRE-FIGHTING
Patents Applications
last 30 patents
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Patent Application
INTEGRAL VALVE EFFECT RESPIRATOR
Publication number
20090188506
Publication date
Jul 30, 2009
John Duke
A62 - LIFE-SAVING FIRE-FIGHTING