慶應義塾大学 商学部・商学研究科

新保一成 研究室

開発と環境の経済分析...

NIC 1998 - code 321

Structure

Hierarchy

  • Section: D - Manufacturing
  • Divsion: 32 - Manufacture of radio, television and communication equipment and apparatus
  • Group: 321 - Manufacture of electronic valves and tubes and other electronic components

Class

  • 3210 - Manufacture of electronic valves and tubes and other electronic components

Links