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
Inc. Harold E. Edgerton, 1963
Inc. Harold E. Edgerton, 1938