494827

Information

• Patent Grant
• 494827

• References
• Source

• Patent Number

  494,827

• Date Filed

  Not available

• Date Issued

  Tuesday, April 4, 1893
  131 years ago

• CPC

  • H01M6/28 - Standard cells

• US Classifications

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