Tipp-Ex errors" (German: "Tippfehler"). He subsequently founded a company of the same name. Shortly after that a "Tipp-Ex Sales & Distribution" company (Tipp-Ex Vertrieb GmbH & Co. KG) was founded in Frankfurt by Otto Carls. This company still exists under the name of Tipp-Ex GmbH & Co. KG close to Frankfurt. "Tipp-Ex" became a registered trademark with the German patent office in 1987. Earlier, in 1951, Bette Nesmith Graham invented the first correction fluid in her kitchen and began marketing the product in 1956 as "Mistake Out", later called Liquid Paper. Tipp-Ex GmbH only started to produce white correction fluid in
Michael Nesmith Monkees". To support the reunion, Nesmith, Jones, Dolenz, and Tork briefly toured the UK in 1997. The UK tour was the last appearance of all four Monkees performing together. In 2012, 2013, and 2014, after Jones's death, Nesmith reunited with Dolenz and Tork to perform concerts throughout the United States. Backed with a 7-piece band that included Nesmith's son, Christian, the trio performed 27 songs from The Monkees discography. ("Daydream Believer" was sung by the audience and played by the band.) When asked why he had decided to return to the Monkees, Nesmith stated, "I never really left. It is