3579247

Information

• Patent Grant
• 3579247

• References
• Source

• Patent Number

  3,579,247

• Date Filed

  Not available

• Date Issued

  Tuesday, May 18, 1971
  53 years ago

• CPC

  • H04L21/04 - at the receiving end
  • B65G19/26 - pivotal
  • G01S7/60 - for providing a permanent recording

• US Classifications

  • 346 - Recorders
  • 367 - Communications, electrical: acoustic wave systems and devices