The Erwin F. Belohoubek papers are composed of correspondence, articles, reports, and patents related to Belohoubek’s work on microwave technologies related to radar for the research safety vehicle (RSV) and the MARC-80 air defense system. Many of the articles and patents are in German, in which Belohoubek was fluent.

Fifteen of Belohoubek's lab notebooks (1957-1987) can be found in Record group 26.

The Sperry Gyroscope Company was originally organized by electrical inventor Elmer Ambrose Sperry for the purpose of manufacturing and marketing his ship gyrostabilizer, gyrocompass, and high-intensity searchlight. The records describe the development and marketing of the marine and airplane stabilizer, the high-intensity searchlight, fire control systems, the gyrocompass, airplane automatic pilot, bombsights, and the aerial torpedo. They trace the evolving relationship between Sperry and the military and the impact of World Wars I and II.

The Stewart M. Perlow papers are composed of research records generated by Perlow. They encompass intra-office correspondence, technical reports, papers authored by Perlow, and technical manuals. Additionally, the records include photographs of components developed by Perlow and paperwork related to the filing of his patent applications.