National

National_Heidrick05.jpg
National 25 crawler at the
Heidrick Ag History Center,
Woodland, California, USA in 2005.

National Brake & Electric Co.

National Brake & Electric Co. of Milwaukee, Wisconsin manufactured crawler tractors for a limited period around the late 1920s and early 1930s, at which time they were involved in a legal dispute with Caterpillar over patent rights.