Razor be used on both sides, with two open edges. The blade on the double-edged safety razor is slightly curved to allow for a smoother and cleaner shave. In 1901, the American inventor King Camp Gillette, with the assistance of William Nickerson, patented a new variation of safety razor with disposable blades. Gillette realized that a profit could be made by selling an inexpensive razor with disposable blades. This has been called the razor and blades business model, and has become a very common practice for a wide variety of products. Many other brands of safety razors have come and gone.
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