Description

Letter dated 11/22/1966 regarding Mechanical Scan Sonar; Marker Locator Sonar System product data; Scanar II-F Sonar product data; Scanar II-F Sonar Model 1620 product data; Model S-1301-A1 Precision Profiling Sonar Set product data; Model S-1301-A5 Precision Profiling Sonar Set product data; Model 1806 Visicorder Recording Oscilloscope Application Notes, dated 12/1/1968; Model 1806 Fiber-Optics Cathode-Ray Tube Visicorder product data; Oscillographic Recorders Fiber Optic Model 1856 product data