Who invented the refrigerator, dishwasher, microwave oven and other kitchen
appliances?
Kitty Litter
Edward Lowe made the trademark name of Kitty Litter® part of the American vocabulary.
Kleenex Tissue
In 1924, the Kleenex brand of facial tissue was first introduced.
KOOL-AID
Edwin Perkins invented kool-aid in 1927.
Laptop Computer
The history of the laptop.
Laser
Gordon Gould received a patent for the laser - the history of lasers from 1917 to the
present. See Also - How Lasers Work
Laser Disc
David Paul Gregg first envisioned the optical or laser disc in 1958 and patented it in 1969.
Laser Printers
The history of computer laser printers.
Lava Lamp
Post-war England was the perfect backdrop for Craven Walker to create this swinging 60's
icon.
Lawn Mowers
The first patent for a "machine for mowing lawns" was granted to Edwin Beard Budding
on August 31, 1830.
La-Z-Boy Recliner
Cousins Edward Knabusch and Edwin Shoemaker designed a wood slat outdoor folding
chair from orange crates - the first La-Z-Boy recliner.
LCD - Liquid Crystal Display
James Fergason was the inventor of an improved liquid crystal display or LCD.
Letter Box
Philip Downing invented the letter drop letter box in 1891. The history of the mail.
Lie Detector
John Larson invented the polygraph or lie detector in 1921.
Life Savers Candy
The history of the candy called life savers.
Lightbulb & Lamp Related
Read about the history of lighting - including fluorescent lamps, halogen lights, lightbulbs,
mercury vapor lighting and tungsten wire.
Lighthouses
Sailors in unfamiliar waters welcome the sight of lighthouses, buoys beacons and other
navigational aids as guideposts to safe harbor.
Light Microscope
ron
(Ron)
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