Pipelayer Dozers 1978 971 h United States, Charleston, West Virginia
Pipelayer Dozers 1967 United States, Barboursville, West Virginia
Pipelayer Dozers 2014 952 h United States, Elizabeth, West Virginia
Pipelayer Dozers 1965 6,217 h United States, Barboursville, West Virginia
Pipelayer Dozers 2014 1,152 h United States, Elizabeth, West Virginia