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.
Invented here employees. One quotation that sums up the philosophy of "Invented Here" is "Gee, it can't be worth much if someone local thought of it first." Invented here Invented here is an opposite of "not invented here" and occurs when management of an organisation is uncomfortable with innovation or development conducted in-house. Reasons this might be the case are varied, and range from a lack of confidence in the staff within the organisation to a desire to have a third party to blame in the event that a project fails. One effect of this version of "invented here" is that detailed