ENVIRONMENT-PROTECTING BOXES, CASES AND CONTAINERS FOR DELICATE INSTRUMENTS, CONTROL MECHANISMS AND DEVICES

LAMINATED BUILDING AND STRUCTURAL MATERIAL IN FLAT AND CURVED PANEL SHAPES, COMPRISING A LIGHT-WEIGHT SANDWICH OF HIGH DENSITY FACES OVER A LOW-DENSITY CORE, FOR COMBINED INSULATING AND STRUCTURAL PURPOSES, AS IN AIRCRAFT FUSELAGES, COLD-STORAGE AND TROPICAL CHESTS