塗改帶在那1年面世

修正液可能於1951年由美國秘書貝蒂·奈史密斯·格萊姆（Bette Nesmith Graham）發明。
以上引自︰http://zh.wikipedia.org/w/index.php?title=%E5%A1%97%E6%94%B9%E5%B8%B6&variant=zh-tw
Liquid Paper, a brand name of opaque correction fluid, is used to cover up mistakes on paper without retyping the entire sheet. It was very important when material was typed with a typewriter, but less so since the advent of the word processor.
It was invented by Bette Nesmith Graham in 1951 and originally called Mistake Out. Graham was a typist who developed a type of white tempera paint to cover up her mistakes. Her first batch was mixed together in a common kitchen blender.
以上引自︰http://en.wikipedia.org/wiki/Liquid_Paper