Jaws of Life

Reader's DigestのLife's Like That欄９月号に "File these newspaper headlines under: We Don't Even Want to Know"（こんなタイトルの記事は要らない）があり、下はその内の一つです。
Firefighters Use Jaws of Life to Free High School Girl from Locker
この "Jaws of Life" とは何でしょうか？
・Wiktionary: (plural only) Emergency rescue equipment used to open a completely destroyed passenger vehicle, to quickly and somewhat safely extricate the trapped occupants.: For the most terrible of car accidents, jaws of life have to be used to extricate the injured.
・Wikipedia: Hydraulic rescue tools are used by emergency rescue personnel to assist vehicle extrication of crash victims, as well as other rescues from small spaces. These tools include cutters, spreaders, door busters and rams. They are popularly referred to in the English speaking Commonwealth nations and the US as the Jaws of Life, a trademark of Hurst Performance, Inc. The Jaws of Life were first used in 1963 as a tool to free race car drivers from their vehicles after accidents.
なるほど、元々は商標ですか。