The Richard J. Klensch papers contains lab notes, correspondence, drawings, photographs, and reports used to support Klensch's work. The collection documents his forty-seven years working as a scientist at RCA and the David Sarnoff Research Center, in the areas of radar, satellite communications, and electronic printing. In addition, the activities of the RCA Graphic Systems Division during his time there are well covered.

Nine of Klensch's lab notebooks (1952-1972) can be found in Record group 26.