s to claim the especial attention of scientific sufficient. This specification was written by the inventor, teeth. Among mechanics and practical men, who build and men ; and in no other department of science have such won- use them, such wheels are usually called " friction gear." Dr. D. Breed,… … with a vengeance, and are, by the unequal motion of the Both new and useful, of a trap .several good p'ctures. For catching roaches whileyou nap. parts in contact, as well calculated to absorb the motive power as they are to destroy each other. Insetting forth my new invention, Of first importance…
Patents · Friction · Address · Iron · Scientific American · Consists · Wall paper · Steam engines · Small pox · Channel beams · Original patent · Address munn · Plug tobacco · Night soil · Original term
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