3924721

Information

• Patent Grant
• 3924721

• References
• Source

• Patent Number

  3,924,721

• Date Filed

  Not available

• Date Issued

  Tuesday, December 9, 1975
  49 years ago

• CPC

  • B41J7/50 - Type-face selected by combinations of two movements of type carrier
  • G05B19/353 - with speed feedback only
  • G05B2219/37314 - Derive position from speed
  • G05B2219/42182 - Memory is Rom for servo control

• US Classifications

  • 400 - Typewriting machines
  • 318 - Electricity: motive power systems