Also known as zip zipper. It is easy for people to live in modern times one of the top ten inventions. 

The emergence of zipper thing a century ago. At that time, some parts of central Europe, people attempted to belt, hook and loop alternatives to buttons and bows Fitting Gauge, and began to develop  sphygmomanometer with stethoscope the zipper test.
In 1893, a man named Judson of the American engineer, developed a "sliding device's not tight," and obtained a patent, this is the first prototype of  plastic single head stethoscope zipper. The device appears, had a high button D-ring cuff boots button hook on the use of an impact. But the invention did not catch on quickly, mainly due to the quality of this early, but off the locking device, easy at the wrong time and place of release latex bladder, people embarrassed.
In 1913, Swedish Thornbark improved locking device of this rough, it becomes a reliable commodity. His approach is to use the metal locking teeth attached to a flexible shaft. The Vinyl zipper case works: Each tooth is a small hook with the other next to a belt and relatively Latex bulb small teeth on the following hole match. The zipper PVC bulb is very strong, only the slide open, slide the teeth only when Deflation valve opened.
Zippers first used military uniforms. World War I, the U.S. military for the first time zip to order a large number of soldiers to clothing. But the End valve zipper in the promotion of civil society is relatively late, until 1930, was only the women accepted to replace the clothing buttons. http://www.sunnyworldmed.com/Productshow-174.html
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Zipper in 1926 received the name now. According to Mercurial Thermometer reports, a man named Franco novelist, a zipper in the promotion of a Oral thermometer sample business luncheon, said: "a pull, it opened! Then pull it off!" Very simple description of the characteristics of the zipper. Zipper the word comes out of this

The emergence of zipper thing a century ago. At that time Digital Thermometer, some parts of central Europe, people attempted to belt, hook and loop alternatives to buttons and bows, and began to develop the zipper test. Zippers first used military uniforms. World War I, the U.S flexible thermometer. military for the first time zip to order a Nipple type thermometer large number of soldiers to clothing. But the zipper in the promotion of civil society is relatively late, until 1930, was only the women accepted to replace cartoon digital thermometer the clothing buttons. Zipper in 1926 received the name now. According to reports, a man named Franco novelist, a zipper in the promotion of a sample business luncheon, said: "a pull, it opened! Then pull it off!" Very simple description of the characteristics of the zipper.MORE:single head stethoscope Deluxe dual head stethoscope shanghai escort Three Head stethoscope Rosetta Stone Stethoscope ID Tag conveyor belting oximeter Thermowell....