US PATENT SUBCLASS 104 / 279
Current as of: June, 1999
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(under the class definition) Devices for cleaning or clearing railway-tracks.
(1) Note. This subclass includes combinations of railway-track-clearing elements which if claimed separately would go into different official classes.
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15, Brushing, Scrubbing, and General Cleaning, for apparatus for cleaning by any of the following operations; brushing, beating, shaking, shotting, wiping, or the use of a squeegee, particularly
54+, for rail sweepers.
37, Excavating, particularly
198+, for railway snow excavators. 56, Harvesters,
230+, for rail- road vehicle mounted vegetation cutters.
118, Coating Apparatus,
307, for track guided cars with means to spray a liquid onto the rails.
126, Stoves and Furnaces,
271.1+, for surface heaters.
239, Fluid Sprinkling, Spraying, and Diffusing, particularly
173, and 174 for railroad sprinklers.
12.5, for driftage control fences.