2854640

Information

• Patent Grant
• 2854640

• References
• Source

• Patent Number

  2,854,640

• Date Filed

  Not available

• Date Issued

  Tuesday, September 30, 1958
  66 years ago

• CPC

  • H01P9/02 - Helical lines
  • H01B11/146 - using magnetically loaded coatings

• US Classifications

  • 333 - Wave transmission lines and networks
  • 174 - Electricity: conductors and insulators
  • 365 - Static information storage and retrieval