73324454
Aug 20, 1981
Oct 19, 1982
Electrical Insulation; Electrical Transformers; Electrically Insulated Bushings, Busbars, Generator Leads; Casting Resin for Use as Electrical Insulation; Pin and Line Post Insulators; Post Insulators; String and Rod Insulators; Circuit Breakers; Reactors; Electrical Coils and Cores
Electrical and Scientific Apparatus