2120822

Information

• Patent Grant
• 2120822

• References
• Source

• Patent Number

  2,120,822

• Date Filed

  Not available

• Date Issued

  Tuesday, June 14, 1938
  86 years ago

• CPC

  • H01M2/1693 - Wood

• US Classifications

  • 429 - Chemistry: electrical current producing apparatus, product, and process
  • 204 - Chemistry: electrical and wave energy