Description

Correspondence between Nelson Shapiro & M. Klein, dated 3/28/1977 with information for patent application & 8/5/1977 with Supplemental Declaration; US Patent no. 4,055,138, Underwater Vehicle Towing and Recovery Apparatus, 10/25/1977 (2 copies); Original technical drawing; Towed Recovery Device Model 402A-003 product data; Image and diagram of Model 402A-003; Original drawing labled Proposed Towfish, Depressor, Recovery Device, dated 8/24/1971; Letter to John Fryling from M. Klein, dated 8/24/1971;