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