"Oscilloscope Maintenance and repair Handbooks, manuals, etc." . . "United States. Army" . . . . . . . . . . . . "Oscilloscope AN/USM-488, (NSN 6625-01-187-7847)"@en . "Handbooks and manuals"@en . . . "Organizational, direct support, and general support maintenance repair parts and special tools list for oscilloscope AN/USM-488, (NSN 6625-01-187-7847)"@en . . .