III · Science
Applied physics
Subjects
United States · Science · United States. Office of Research and Development. National Defense Research Committee · World War, 1939-1945 · Physics · History
Language
ENG




![Cover of [William Wheeler Hubbell, authorized to apply for patents.] by United States. Congress. Senate. Committee on Patents](https://covers.openlibrary.org/b/id/10200621-M.jpg)
