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Engineering Study of the Rodessa Oil Field in Louisiana, Texas, and Arkansas
Report issued by the Bureau of Mines over drilling operations in Texas, Arkansas, and Louisiana. Results of the operations are discussed. This report includes maps, tables, illustrations, and photographs.
Date:
August 1943
Creator:
Hill, Harry Blackburn & Guthrie, R. K.
Object Type:
Report
System:
The UNT Digital Library
Bill or Paper File.
Patent for a new and improved bill or paper file. This design "relates to hook-files, the object being to so improve their construction as to prevent the bills or papers on the file from working off. The invention consists, essentially, in a file provided with a tongue pivoted near the point of the hook" (lines 7-13).
Date:
August 9, 1887
Creator:
Gilbert, Frank B.
Object Type:
Patent
System:
The Portal to Texas History