Automatic Vacuum Device for Gasoline Filling Stations
Description:
Patent for an automatic vacuum device for gasoline filling stations that will provide a practical and efficient method for measuring and delivering gasoline at filling stations. The invention will be capable of both manual operation and automatic control by a valve circuit.
Date:
unknown
Creator:
McGraw, Carl O. & Martin, James L.
Location:
32.975120 -96.332482
Partner:
UNT Libraries Government Documents Department