1963
Inc. Harold E. Edgerton, 1938
Inc. Harold E. Edgerton, 1973
Inc. Harold E. Edgerton, 1964
Inc. Harold E. Edgerton, 1957
Inc. Harold E. Edgerton, 1960
Inc. Harold E. Edgerton, 1965
Inc. Harold E. Edgerton, 1955