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- Cotton machinery -- Oklahoma -- Oklahoma City2
- Airplanes--Maintenance and repair.1
- Assembly-line methods.1
- Greek Americans--Oklahoma.1
- Greek Americans--Social life and customs.1
- Machinery.1
- Oil fields.1
- Oil well drilling.1
- United States. Army Air Forces. Air Service Command.1
- Washington University (Saint Louis, Mo.). School of Dentistry.1
- World War, 1939-1945--Social aspects--United States.1