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.
Razor Blade Museum. It was returned to the UK in the 1980s, restored by the present owner and it is now in use in VSCC and other historic car events. "The Light Car and Cyclecar" magazine, September 7, 1923, printed the following verse under the title of LIGHT CAR-ICATURES after the Razor Blade came first in the BARC meeting at Brooklands: Major F. B. Halford With razor blades we’re all acquainted; Some are good, others painted. Halford Smiles; he’s found a winner; Diet follows – make him thinner. 1920s in motorsport Razor Blade The Aston Martin Razor Blade team car was built