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 Jefferson Papers Indexes | Papers of Thomas Jefferson, Index to volume 36 | P |  patents

Subentries

– coffee grinders [1 reference]

– dental devices [1 reference]

– spoon manufacturing [1 reference]

– gas manufacturing [1 reference]

– immigrants seek [1 reference]

– lifesaving devices [1 reference]

– perpetual motion [1 reference]

– screens [1 reference]

– steelyards [1 reference]