So, this isn't technically a stapler. But, when I started learning about the world of stapleless staplers, I had to have one. My first pursuit was after a stapleless paper fastener made by the Bump Fastener Company from La Crosse, Wisconsin. There was also the Clipless Paper Fastener Company of Newton, Iowa, who eventually bought out Bump. Above is pictured a Chadwick Stapleless Stapler , which functions on the same principle. A hole and a tab are punched after which the tab is folded into the hole fastening the paper together without a staple.
Excerpt from the Stapler of the Week Archives, May 11, 2007