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uspto-grants-2014_09
uspto-grants-2014_09 · 10.6084/m9.figshare.5104873.v1 · US08822369B2
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uspto-grants-1993_07 · 10.6084/m9.figshare.5104873.v1 · US05227145
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uspto-grants-1988_09 · 10.6084/m9.figshare.5104873.v1 · US04772563
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