March 17, 1957: Game Warden Jerry Liemandt (seated) and special deputy Merrill Love prepare for their appointed rounds aboard a $1,200 air-sled recently purchased from inventor Donald Bergstrom. Sponsored largely by the Greater Lake Minnetonka Council, the air-sled reportedly has dramatically improved law enforcement's ability to patrol the sprawling lake west of Minneapolis, Minn. - Minneapolis Sunday Tribune titled "Ice Patrol Enforces Law on Minnetonka." See Terms of use. Link to Home.