3812495

Information

• Patent Grant
• 3812495

• References
• Source

• Patent Number

  3,812,495

• Date Filed

  Not available

• Date Issued

  Tuesday, May 21, 1974
  50 years ago

• CPC

  • B41J2/495 - by selective printing from a rotating helical member

• US Classifications

  • 346 - Recorders
  • 101 - Printing
  • 400 - Typewriting machines