2221158

Information

• Patent Grant
• 2221158

• References
• Source

• Patent Number

  2,221,158

• Date Filed

  Not available

• Date Issued

  Tuesday, November 12, 1940
  83 years ago

• CPC

  • B60M1/04 - Mechanical protection of line Protection against contact by living beings

• US Classifications

  • 191 - Electricity: transmission to vehicles
  • 174 - Electricity: conductors and insulators