3718269

Information

• Patent Grant
• 3718269

• References
• Source

• Patent Number

  3,718,269

• Date Filed

  Not available

• Date Issued

  Tuesday, February 27, 1973
  51 years ago

• CPC

  • G06K13/20 - Details
  • F15C1/001 - for punched-card machines ; for typewriters ; for keyboards; for conveying cards or tape; for conveying through tubes ; for computers ; for dc-ac transducers for information processing ; for signal transmission

• US Classifications

  • 226 - Advancing material of indeterminate length