IV.-Classified list of patents, &c.-Continued. Inventions or discoveries. Patentees. Residence. Date of patent. Hat bodies... Hat bodies, batting or web for.. Loom, (ante dated March 21, 1837). Loom, (ante dated Feb. 10, 1837).. Napping cloth..... Spinning woollen roving. Thread, preventing from waste, &c. wool. Thread, waste, reducing to cottonwool. Woo!, cleaning..... Wool, cleaning burr from..... CLASS IV. Chemical processes, manufactures, and compounds, including medicine, dying, color-making, distilling, soap and candle-making, mortars, cements, &c. IV.—Classified list of patents, &c.—Continued. CLASS V.-Calorific, comprising lamps, fireplaces, stoves, grates, furnaces for heating buildings, cooking apparatus, preparations of fuel, &c. Inventions or discoveries. Patentees. Residence. Air to wood and coal stoves, (ante- Federick A. Frickhardt. Easton, Pa........ Cooking apparatus.... dated March 25, 1837.) Cooking, fire apparatus for.. Cooking, generating steam for.. Cooking, steam vessel for... Cooking stove.. William W. Parrott... Benjamin H. Wood... Date of patent. 1837. Sept. 25 Mar. 11 Oct. 28 Bath, Steuben co., New York. Jan. 31 IV.-Classified list of patents, &re.-Continued. CLASS VI.-Steam and gas engines, including boilers and furnaces therefor, and parts thereof. IV.-Classified list of patents, &c.-Continued. CLASS VII.-Navigation and maritime implements, comprising all vessels for conveyance on water, their construction, rigging, and propulsion; diving dresses, life preservers, &c. IV.—Classified list of patents, &c.—Continued. CLASS VIII.-Mathematical, philosophical, and optical instruments, including clocks, chronometers, &c. CLASS IX.-Civil engineering and architecture, comprising works on rail and common roads, bridges, canals, wharves, docks, rivers, weirs, dams, and other internal improvements, buildings, roofs, &c. CLASS X.-Land conveyance, comprising carriages, cars, and other vehicles used on roads, and parts thereof. |