no. 1. Mitsubishi Heavy Industries, ltd. Airframes and engines.--no. 2. Nakajima Aircraft Company, ltd. Airframes and engines.--no. 3. Kawanishi Aircraft Company. Air frames.--no. 4. Kawasaki Aircraft Industries Company. Air frames and engines.--no. 5. Aichi Aircraft Company. Airframes and engines.--no. 6. Sumitomo Metal Industries, Propeller Division. Propellers.--no. 7. Ititachi Aircraft Company. Airframes and engines.--no. 8. Japan International Air Industries, ltd. Airframes.--no. 9 Japan Musical Instrument Manufacturing Company. Propellers.--no. 10. Tachikawa Aircraft Company. Airframes.--no. 11. Fuji Airplane Company. Airframes.--no. 12. Showa Airplane Company. Airframes.--no. 13. Ishikawajima Aircraft Industries, ltd. Engines.--no. 14. Nippon Airplane Co. Airframes.--no. 15. Kyushu Airplane Company. Airframes.--no. 16. Shoda Engineering Company. Components.--no. 17. Mitaka aircraft industries. Components.--no. 18. Nissan Automobile Company Engines.--no. 19. Army Air Arsenal and Navy air depots. Airframes and engines.--no. 20. Underground production of Japanese aircraft