FISHER SPACE PEN

Fisher Space Pen is a U.S.-based company that manufactures a pen that uses pressurized ink cartridges and is able to write in zero gravity, underwater, and over wet and greasy paper, at any angle, and in a wide range of temperatures. Fisher Space Pen is the developer of "Universal Refill", a cartridge that is pressurized with nitrogen. Its products did work in the weightlessness of outer space and the astronauts, beginning with the 1968 Apollo 7 mission began using the Fisher AG-7 Space Pen and cartridge developed in 1966. Fisher Space Pen is based in Boulder City, N.V.