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Beef Production in the Corn Belt
This bulletin discusses beef production in the Corn Belt of the United States with special regard to feed preparation, cattle selection, and methods for fattening cattle.
Date:
1921
Creator:
Black, W. H. (William Henry), 1888-1949
Object Type:
Pamphlet
System:
The UNT Digital Library
Well-Drilling Device.
Patent for well drilling device with new and useful improvements in well-drilling device for simultaneously drilling the main hole and an advance or "rat-tail" hole.
Date:
March 1, 1921
Creator:
Smith, Primus W. & Bookhout, John J.
Object Type:
Patent
System:
The Portal to Texas History
Drill-Bit
Patent for new improvement in drill-bits. The object of the invention is to "provide the driller with advanced knowledge of the formation into which he is about to extend his main hole".
Date:
January 11, 1921
Creator:
Smith, Primus W.; Bookhout, John J. & Monce, Edwin W.
Object Type:
Patent
System:
The Portal to Texas History