A Zipper joins two pieces of material together. A zipper is used everywhere, on clothing, pencil cases, boots and suitcases, wallets, and a zillion other things. Everyone thinks it was Whitcomb Judson who invented the zipper but it was really Elias Howe. Elias was so busy inventing the sewing machine that he didn't get around to selling his zipper invention which he called a "clothing closure".
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