Tracer-controlled position regulator for propeller milling machine

摘要

Discussion and author's closure of paper 45–47 by C. R. Hanna, W. O. Osbon, and R. A. Hartley, presented at the AIEE winter technical meeting, New York, N. y., January 22–26,1945, and published in AIEE TRANSACTIONS, 1945, April section, pages 201–05.