Welcome to the Woodward Governor Company unofficial History Site

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A history project on the Art and Science of Brewing.

img280.jpg The James Leffel Company letter, circa March 10, 1919.ThumbnailsPatent 3,187,505. Page 1 of 3. Filed patent in 1962.The James Leffel Company letter, circa March 10, 1919.ThumbnailsPatent 3,187,505. Page 1 of 3. Filed patent in 1962.The James Leffel Company letter, circa March 10, 1919.ThumbnailsPatent 3,187,505. Page 1 of 3. Filed patent in 1962.The James Leffel Company letter, circa March 10, 1919.ThumbnailsPatent 3,187,505. Page 1 of 3. Filed patent in 1962.