3328589

Information

• Patent Grant
• 3328589

• References
• Source

• Patent Number

  3,328,589

• Date Filed

  Not available

• Date Issued

  Tuesday, June 27, 1967
  57 years ago

• CPC

  • H04M1/278 - using punched cards or tapes

• US Classifications

  • 250 - Radiant energy
  • 235 - Registers
  • 341 - Coded data generation or conversion
  • 359 - Optical: systems and elements