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
Austin Cartridge Company powder. In 1884 the company became the exclusive supplier of gunpowder for shotgun shells manufactured by Chamberlain Cartridge Company. Austin Powder Company built the company town of Glenwillow, Ohio in 1892, and established the Austin Cartridge Company there in 1895 manufacturing "Crack Shot", "Club Sporting", and "Champion Ducking" shotgun shells. The Union Cap and Chemical Company was formed in 1900 as a joint venture of Austin Cartridge Company and Western Cartridge Company to manufacture blasting caps, primers, and .22 and .32 caliber rimfire cartridges. The Union Cap and Chemical Company trademark was a Maltese cross and a UCC headstamp appeared