3834509

Information

• Patent Grant
• 3834509

• References
• Source

• Patent Number

  3,834,509

• Date Filed

  Not available

• Date Issued

  Tuesday, September 10, 1974
  50 years ago

• CPC

  • B41J29/66 - Locking devices actuated when platen reaches the end of a line
  • B41J29/46 - Applications of alarms

• US Classifications

  • 400 - Typewriting machines