| Browse Inventions by decade patented: 1870 - 1879 Telephone / Telegraphy Alexander Graham Bell Alternating Current George Westinghouse, Jr. Automatic Engine Lubricator Elijah McCoy Zig Zag sewing machine Helen Blanchard Arc lamp for street lighting Charles Brush Improvements in the steam engine George Corliss Signal flares used by ships Martha Coston Design of automobile and motorcycle engines Gottleib Daimler Barbed wire Joseph Glidden Direct current dynamo Zénobe Gramme Cable car Andrew Hallidie Steam powered rock drill Simon Ingersoll Machine for making flat bottom paper bags Margaret Knight Breech-Loading Firearm John Moses Browning ![]() |
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