Safety razor steel blades remain in limited production for lower income markets. Because Gillette held a patent on stainless blades but had not acted on it, the company was accused of exploiting customers by forcing them to buy the rust-prone blade. The risk of injury from handling razor blades was further reduced in 1970 when Wilkinson released its "Bonded Shaving System", which embedded a single blade in a disposable polymer plastic cartridge. A flurry of competing models soon followed with everything from one to six blades, with many cartridge blade razors also having disposable handles. Cartridge blade razors are sometimes considered to
Peters Cartridge Company on 15 July 1890 triggered an explosion killing twelve people and starting fires destroying the railroad station, the freight house, two Peters Cartridge Company office buildings, the shell factory, the cartridge loading plant, a large warehouse and six employee residences. Wood-frame structures were rebuilt on the opposite side of the river from the old powder works included a large shot tower completed in 1895. The last wood-frame structures were machine shop building R-3 and shotgun shell loading building R-21 built in 1907. With the approach of World War I the company received large ammunition orders from the Russian Empire and