3145921

Information

• Patent Grant
• 3145921

• References
• Source

• Patent Number

  3,145,921

• Date Filed

  Not available

• Date Issued

  Tuesday, August 25, 1964
  60 years ago

• CPC

  • H04L17/20 - using perforating recorders
  • H04L17/08 - combined with perforating apparatus

• US Classifications

  • 234 - Selective cutting