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  2. Edmond Michel - Wikipedia

    en.wikipedia.org/wiki/Edmond_Michel

    After leaving the Skil company, Michel invested his share of the money inventing and developing Larmloc, the first keypad-based lock. Sadly, this invention failed to pan out, and only one working prototype was ever made. This inventor remains largely forgotten in American history, but is still remembered by his family.

  3. Saw - Wikipedia

    en.wikipedia.org/wiki/Saw

    Bow saw, turning saw, or buck saw: a saw with a narrow blade held in tension in a frame; the blade can usually be rotated and may be toothed on both edges; it may be a rip or a crosscut, and was the preferred form of hand saw for continental European woodworkers until superseded by machines;

  4. Timeline of United States inventions (1890–1945) - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_United_States...

    The Slinky was invented in 1943 by American engineer Richard T. James while working in his home laboratory to invent a set of springs that could be used to support sensitive instruments on board ships and stabilize them even in rough seas. When he once accidentally knocked one of his springs off a shelf, James saw that, rather than flopping in ...

  5. X-Acto - Wikipedia

    en.wikipedia.org/wiki/X-Acto

    X-Acto is a brand name for a variety of cutting tools and office products owned by Elmer's Products, Inc. These include hobby and utility knives, saws, carving tools and many small-scale precision knives used for crafts and other applications.

  6. Circular saw - Wikipedia

    en.wikipedia.org/wiki/Circular_saw

    The modern-day circular saw was invented around the end of the 18th century as a rip-saw to convert logs into lumber in sawmills and various claims have been made as to who invented it. Before the design was invented, logs were sawn by hand using a pit saw or using powered saws in a sawmill using an up-and-down saw with a reciprocating motion ...

  7. Skilsaw - Wikipedia

    en.wikipedia.org/wiki/Skilsaw

    The following year, 2016, brought three new metal cutting saws, including the first 8-inch worm drive optimized for metal, a 12-inch dry cut saw and a 14-inch abrasive chop saw. [ citation needed ] In addition to metal cutting, SKILSAW also announced a saw for fiber cement in 2015 [ 7 ] and the first worm drive saw for concrete in 2016. [ 8 ]

  8. DeWalt - Wikipedia

    en.wikipedia.org/wiki/DeWalt

    The original company was started in 1924 by Raymond E. DeWalt, inventor of the radial arm saw. It grew quickly and was reorganized and reincorporated in 1947 as DeWalt Inc. American Machine & Foundry Co., Inc. bought the company in 1949, and sold it to Black & Decker in 1960. Black & Decker divested itself of the radial arm saw manufacturing ...

  9. List of Spanish inventions and discoveries - Wikipedia

    en.wikipedia.org/wiki/List_of_Spanish_inventions...

    Water and weight driven mechanical clocks, by Spanish Muslim engineers sometime between 900–1200 AD. According to historian Will Durant, a watch like device was invented by Ibn Firnas. Magnetic wormhole - first ever manmade wormhole created at the Universitat Autonoma de Barcelona by Spanish physicist Jordi Prat-Camps. The magnetic wormhole ...