MIL-P-6997B (AMENDMENT 1), MILITARY SPECIFICATION: PLASTIC: WORKING AND INSTALLATION OF TRANSPARENT SHEET, GENERAL SPECIFICATION FOR (11-FEB-1958) [NO S/S DOCUMENT]

MIL-P-6997B (AMENDMENT 1), MILITARY SPECIFICATION: PLASTIC: WORKING AND INSTALLATION OF TRANSPARENT SHEET, GENERAL SPECIFICATION FOR (11-FEB-1958) [NO S/S DOCUMENT]., This amendment forms a part of Specification MIL-P-6997B(ASG), dated 8 February 1955, and has been approved by the Department of the Air Force and by the Navy Bureau of Aeronautics.