The road-building industry's first motorized, self-propelled motor grader was the Russell Motor Hi-Way Patrol No. 1. Introduced in 1919, it was powered by a two-wheeled tractor unit supplied by Allis-Chalmers. The motor grader was officially offered for sale in 1920.
Serial numbers: MH-101 to MH-272.
The grader was based on McCormick-Deering's Model 10-20.
Serial numbers: 1P101 to 1P750.
The grader was based on the Caterpillar 2-Ton crawler tractor.
Serial numbers: U-101 to U-750.
The grader was based on a Cletrac K-20 crawler tractor.
Serial numbers: V-101 to V-250.
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