3757921

Information

• Patent Grant
• 3757921

• References
• Source

• Patent Number

  3,757,921

• Date Filed

  Not available

• Date Issued

  Tuesday, September 11, 1973
  51 years ago

• CPC

  • B41J3/50 - Mechanisms producing characters by printing and also producing a record by other means
  • B41B27/36 - using electronic devices

• US Classifications

  • 400 - Typewriting machines