Safety razor become locked into buying their proprietary cartridges, for as long as the manufacturer continues to make them. Subsequent to introducing the higher-priced Mach3 in 1998, Gillette's blade sales realized a 50% increase, and profits increased in an otherwise mature market. The marketing of increasing numbers of blades in a cartridge has been parodied since the 1970s. The debut episode of "Saturday Night Live" in 1975 included a parody advertisement for the Triple Trac Razor, shortly after the first two-blade cartridge for men's razors was advertised. "Mad" magazine announced the "Trac 76", arranged as a chain of cartridges with a handle
Jacob Schick He officially retired from the military in 1910, but returned to duty from 1916-1918 as a Captain (eventually promoted to Lt. Colonel) due to the outbreak of World War I. Jacob Schick's first business venture, the Magazine Repeating Razor Co. (Founded 1925) sold a razor with injection cartridge blades designed much like a repeating rifle, where the blades were sold in clips that could be loaded into the razor without touching the blade. This business provided the necessary capital to develop his electric razor concept when he sold it to the American Chain & Cable Company in 1928. Successfully patented