Able walker...the walker was patented by Norm Rolston in 1986

Air-Conditioned Railway Coach ...invented by Henry Ruttan in 1858

Abdominizer...the infomercial exercise darling invented by Dennis Colonello in 1984

AC Radio Tube ..invented by Edward Samuels Rogers in 1925

Acetylene ...Thomas L. Wilson invented the production process in 1892

Acetylene Buoy ...invented by Thomas L. Wilson in 1904

Agrifoam Crop Cold Protector ...co-invented in 1967 by D. Siminovitch & J. W. Butler

Analytical Plotter ...a 3d map making system invented by Uno Vilho Helava in 1957

Andromonon ...a 3 wheeled vehicle invented in 1851 by Thomas Turnbull

Anti-Gravity Suit ...invented by Wilbur Rounding Franks in 1941, a suit for high altitude jet pilots

Automatic ...the first steam foghorn was invented by Robert Foulis in 1859

Automatic Machinery Lubricator ...one of the many inventions invented by Elijah McCoy, the "Real McCoy"

Automatic Postal Sorter ...in 1957, Maurice Levy invented a postal sorter that could handle 200,000 letters an hour

Basketball ...invented by James Naismith in 1891

Bone Marrow Compatibility Test ...invented by Barbara Bain i

Polypump Liquid Dispenser ...Harold Humphrey made pumpable liquid hand soap possible in 1972

Rotary Railroad Snowplow ...invented by J.E. Elliott in 1869

Paint Roller ...invented by Norman Breakey of Toronto in 1940

Some topics in this essay:
Reginald Fessenden, Thomas Wilson, Thomas Ahearn, Rounding Franks, Maurice Levy, Charles Collip, Vilho Helava, Henry Woodward, Samuels Rogers, Elijah McCoy, reginald fessenden, invented reginald fessenden, invented reginald, system invented, invented sir, invented john, light bulb, invented dr, graham bell, invented thomas, thomas wilson, alexander graham bell, electric car heater, map system invented, co-invented alexander graham,