Hans S. Erlandsen, 48-year-old security guard, suffered an apparent heart attack today while driving and smashed into a telegraph pole at the used car lot at Santa Barbara and Vermont Avenues. Officers J.H. Turner and L.M Friday were called to the scene and tried to aid the stricken man, but his Doberman pinscher refused to let them anywhere near his master. After nearly half an hour, the dog quieted and permitted ambulance workers to attend Erlandsen, who was probably dead when his car left the road. According to his fishing license, the victim lived at 3980 S. Budlong.