pace AdministrationHollow polyamide foam-like product can provide for efficient and efficacious repair of foam insulation already in place, such as on aircraft, spacecraft and maritime ships; heat/solvent/chemical resistanceUS6132546 *7 Ene 199917 Oct 2000Northrop Grumman CorporationMethod for manufacturing honeycomb materialUS6146484 *21 May 199814 Nov 2000Northrop Grumman CorporationContinuous h