history of the paper clip,回形针的历史

history of the paper clip
很多人都会将回形针归为伟大的发明(相似的还有拉链,易拉罐等等),但你了解历史吗,回形针第一次出现(那时候未必是回型)是什么时候呢,为什么它有这么多类型?wikipedia上不了,就看这:Early Office Museum(The Early Office Museum™engages in research on the history and evolution of offices, antique office machines and equipment, and business technology based on original documents, artifacts, and photographs。值得收藏)。(via:designboom weblog)