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| Number | Title | Issue Date |
| 4162766 | Vehicular spreader for icy roads and the like An auxiliary hopper is attached to the rear of a cinder spreading truck. The auxiliary hopper carries salt. The cinders and salt are discharged from their respective storage hoppers in predetermined proportions, are mixed and dumped onto a spreader for ap... | 07/31/1979 |
| 4114932 | Motor vehicle wheel track sanding device A motor vehicle wheel track sanding device including a sand storage tank, a hopper mounted over a wheel of a motor vehicle, a pipe connecting the interior of the hopper to the storage chamber, an auger disposed within the pipe for transferring the sand fr... | 09/19/1978 |
