The department had begun to innovate by adopting a callbox system, beginning the use of police wagons, and forming a mounted unit.

This unit was converted from a mounted unit into an infantry formation during the 1926 reformation.

This mounted unit was 50-strong.

The asphalt paving industry also uses this type of trailer or truck chassis mounted unit to haul hot mix asphalt from the batch plant to the job site.

Leaf blowers are typically self-contained handheld units, or backpack mounted units with a handheld wand.