Quick Answer. Cardiopulmonary resuscitation, or CPR, courses are two to five hours long and the certification lasts for two years, states American Red Cross. CPR is an emergency technique used to attempt to save a personâs life if he has stopped breathing or if his heart has stopped beating, says Mayo Clinic. Continue Reading.
This feature is not available right now. Please try again later. In 1950, Zenith introduced the Cobra-Matic variable speed automatic record changer -- the first and only changer that plays any speed record now made or yet to come, 10 rpm to 85...with two simple controls a six-year-old can operate..
Performance Built Chevy 6L90 Transmission Sale. The Hydra-Matic 6L90E transmission was introduced by GM to handle the increasing power of 3/4 ton and 1 ton Chevy and GMC Trucks. The 6L90 automatic six speed transmission is the heavy duty version of the 6L80E transmission.