Shaving Sword introduced the 'bonded blade' razor, which consisted of a single blade housed in a plastic cartridge. Gillette followed in 1971 with its Trac II cartridge razor that utilised two blades. Gillette built on this twin blade design for a time, introducing new razors with added features such as a pivoting head, lubricating strip, and spring-mounted blades until their 1998 launch of the triple-bladed Mach3 razor. Schick launched a four-blade Quattro razor later the same year, and in 2006 Gillette launched the five-blade Fusion. Since then, razors with six and seven blades have been introduced. Wholly disposable razors gained popularity
Union Metallic Cartridge Company Union Metallic Cartridge Company The Union Metallic Cartridge Company (UMC) was an early manufacturer of cartridge ammunition for small arms. The company was founded in 1867 during the most rapid evolution of cartridge design to date. Following merger with Remington Arms in 1912, the company manufacturing complex in Bridgeport, Connecticut became a major arms supplier during World War I. The factory was Remington headquarters until 1984 and the source of sporting and police ammunition headstamped REM-UMC until 1970. The New York sporting goods firm of Schuyler, Hartley & Graham purchased two small New England cartridge manufacturers in 1866. Machinery from