3870830

Information

• Patent Grant
• 3870830

• References
• Source

• Patent Number

  3,870,830

• Date Filed

  Not available

• Date Issued

  Tuesday, March 11, 1975
  49 years ago

• CPC

  • G06K13/0825 - the ejection arrangement being of the push-push kind
  • H04M1/278 - using punched cards or tapes

• US Classifications

  • 379 - Telephonic communications
  • 250 - Radiant energy