3452909

Information

• Patent Grant
• 3452909

• References
• Source

• Patent Number

  3,452,909

• Date Filed

  Not available

• Date Issued

  Tuesday, July 1, 1969
  55 years ago

• CPC

  • 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
  • G06K13/24 - Guiding of record carriers Recognising end of record carrier
  • G11B15/38 - Driving record carriers by pneumatic means
  • G11B15/385 - directly
  • G11B15/56 - the record carrier having reserve loop
  • G11B15/58 - with vacuum column
  • G11B23/12 - Bins for random storage of webs or filaments

• US Classifications

  • 226 - Advancing material of indeterminate length
  • G9B - INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER