∗Presented before the Executive Luncheon Session of the Sixth Midwest Quality Control Conference. This meeting was sponsored jointly by the Chicago Association of Commerce and Industry, and the Midwest Sections of ASQC, October 3, 1951, at the Hotel Sherman in Chicago, Illinois.
Notes
∗Presented before the Executive Luncheon Session of the Sixth Midwest Quality Control Conference. This meeting was sponsored jointly by the Chicago Association of Commerce and Industry, and the Midwest Sections of ASQC, October 3, 1951, at the Hotel Sherman in Chicago, Illinois.