3846790

Information

• Patent Grant
• 3846790

• References
• Source

• Patent Number

  3,846,790

• Date Filed

  Not available

• Date Issued

  Tuesday, November 5, 1974
  50 years ago

• CPC

  • G08B13/2497 - using transmission lines
  • G01V11/00 - prospecting or detecting by methods combining techniques covered by two or more of main groups G01V1/00 - G01V9/00
  • G08B13/169 - using cable transducer means

• US Classifications

  • 340 - Communications: electrical
  • 324 - Electricity: measuring and testing