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Pump-Plunger
Patent for a pump-plunger, concentrating on advancements in the design, particularly catering to deep well operations and environments with challenging conditions, such as oil and water wells where fluids are mixed with sand, sediment, or debris.
Date:
October 18, 1921
Creator:
Miller, Frank J.
Object Type:
Patent
System:
The Portal to Texas History
2007 Economic Census Map: Dallas-Fort Worth, Texas Combined Statistical Area
Map showing the area of the Dallas-Fort Worth, Texas Combined Statistical Area for which the U.S. Census Bureau collected data during the 2007 economic census.
Date:
2007
Creator:
United States. Bureau of the Census.
Object Type:
Map
System:
The Portal to Texas History