1880-09-18: The Inclined Passenger Railway, Pittsburg, Pa,1880-09-25: Murch's Chariot Cab.1880-10-02: Book Making - the American Book Exchange1880-10-09: The Manufacture of Parlor Furniture.-Factory of m. & H. Schrenkeisen. New York City1880-10-16: Manufacture of. Non-Conducting Coverings for Steam-Pipes And Boilers.-the Chalmers-Spence Co. New York City1880-10-23: Maxim's Current Regulator1880-10-30: Andrews' Leveling Attachment for Earth Cars1880-11-06: The Manufacture of Standard Scales.-E. & t. Fairbanks & Co.1880-11-13: Mr: Eads' Great Ship- Railway for the American Isthmus1880-11-20: The Manufacture of Chemicals. Works of Martin Kalbfleisch's Sons.1880-11-27: Improved Vacuum Pan.1880-12-04: The Manufacture of Steam Appliances.-Crosby Steam Gage And Valve Company, Boston. Mass1880-12-11: The Manufacture of Steam, Gas, And Water Fittings And Tools.-Eaton, Cole & Burnham Co1880-12-18: Business Colleges And Their Systems1880-12-25: Rock Drills And Their Uses
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1880-09-18: The Inclined Passenger Railway, Pittsburg, Pa,