The Online Books Page

Books by R. P. Sopher:

Books in the extended shelves:

• Sopher, R. P.: Investigation of weldability of hot-work tool steels (Wright-Patterson Air Force Base, Ohio : Aeronautical Systems Division, Air Force Systems Command, United States Air Force, 1961., 1961), also by N. A. Sinclair, J. G. Maciora, United States. Air Force. Systems Command. Aeronautical Systems Division, United States. Air Force. Systems Command. Aeronautical Systems Division. Directorate of Materials and Processesd States, and General Dynamics Corporation. Electric Boat Division (page images at HathiTrust)
• Sopher, R. P.: Solder bonding aluminum to uranium (U.S. Atomic Energy Commission, Technical Information Service Extension, 1957), also by D. C. Martin, J. T. Niemann, Herbert W. Mishler, Battelle Memorial Institute, and U.S. Atomic Energy Commission (page images at HathiTrust)
• Sopher, R. P.: Spindle shaping of titanium sheet (Columbus, Ohio : Defense Metals Information Center, Battelle Memorial Institute, 1959., 1959), also by J. T. Niemann, P. J. Rieppel, and Defense Metals Information Center (U.S.) (page images at HathiTrust)

Find more by R. P. Sopher at your library, or elsewhere.