Metal water barriers

SHELVES, MOUNTING BASES FOR STABLE PLATFORMS USED IN GROUND-TO- AIR MISSILES, SUPPORTS FOR COUNTERMEASURE SYSTEMS IN AIRCRAFT AND TEST FIXTURES, AND PLATES, I-BEAMS, CHANNELS, ANGLES AND OTHER CONSTRUCTION MATERIALS MADE OF COMBINATIONS OF METAL AND VISCOELASTIC MATERIALS FOR USE IN MAKING OF THE AFORESAID ARTICLES AND ALSO FOR USE IN MAKING BOXES, DUCTS, BUILDINGS, ROOMS, MACHINERY FOUNDATIONS, AIRPLANE AND MISSILE STRUCTURES AND CHASSIS AND PARTS FOR ELECTRICAL AND ELECTRONIC EQUIPMENT

Shelves, Mounting Bases for Stable Platforms Used in Ground-to-Air Missiles, Supports for Countermeasure Systems in Aircraft and Test Fixtures, and Plates, I-Beams, Channels, Angles and Other Construction Materials Made of Combinations of Metal and Viscoelastic Materials for Use in Making the Aforesaid Articles and Also for Use in Making Boxes, Ducts, Buildings, Rooms, Machinery Foundations, Airplane and Missile Structures and Chassis and Parts for Electrical and Electronic Equipment