Title:
Convertible rail-highway tractor
United States Patent 3399633

Inventors:
Howard, Herscovitch William
Publication Date:
09/03/1968
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Primary Class:
105/26.100
Other Classes:
105/73, 105/75, 105/215.200
International Classes:
B60F1/04; B61C9/08; B61G7/10; B61J3/12; B60F1/00; B61C9/00; B61G7/00; B61J3/00
US Patent References:
3130686Convertible road and railway track vehicle
3182604Set-off device and method for railway machines
3198137Traction vehicle
3249007Automatic focusing photographic projector