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Zippers!
Stuff You Missed in History Class
Sundback's Fastener in the 19th Century
The first large scale use of sunbac's invention was the military world. Although it saved time and was reliable, it took a long time to catch on with the general population. Zippers were still struggling to be recognized for their utility value. They found a use as a closure for tobacco pouches when locktight started buying bulk for the pouches they made.
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