MIL-E-19400 (NOTICE 1), MILITARY SPECIFICATION: ELECTRONIC EQUIPMENT, AIRBORNE SONAR, GENERAL SPECIFICATION FOR (10 MAY 1977) [NO S/S DOCUMENT]

MIL-E-19400 (NOTICE 1), MILITARY SPECIFICATION: ELECTRONIC EQUIPMENT, AIRBORNE SONAR, GENERAL SPECIFICATION FOR (10 MAY 1977) [NO S/S DOCUMENT]., Specification MIL-E-19400 dated 20 June 1957 is hereby canceled. There is no superseding document.