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thumbnail Hummingbirds - Crawford H. Greenewalt, 1968
HEE-SC-08267
Edgerton, Harold Eugene
1968-12-
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Related People

thumbnail Edgerton, Harold Eugene
American
1903-1990; electrical engineer; professor
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thumbnail Greenewalt, Crawford Hallock
American
chemical engineer; president, Du Pont Company 1948-1962
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