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.
Western Cartridge Company for these products included fabrication of sheet metal cups and filling portions of those cups with primary explosive. Rimfire cartridges bore a UCC headstamp and product packaging included a Maltese cross trademark. Purchase of Alliance Cartridge Company in 1907 allowed UCC merger into Western Cartridge Company. The company trademark morphed into "Super-X" as the Maltese cross became associated with World War I Germany. John Olin, the son of founder Franklin W. Olin, improved shotgun cartridge designs in the 1920s by using harder shot and progressive burning powder. Western produced 3 billion rounds of ammunition in World War II, and the