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
Rolls Razor in the US in 1950; the claimed first use was 1922. The US patent for the method of attaching the blade to the handle was filed in 1925 and issued in 1930. The name "Rolls Razor (1927) Ltd." was used in advertising. The razor was still manufactured and sold until 1958 when the company was purchased by entrepreneur/corporate raider John Bloom who decided to focus on washing machines rather than the razor. Though not made by the Rolls-Royce company, the name was chosen to evoke the "Rolls" image of luxury and quality. The factory address was 255 Cricklewood Broadway, London,