3804008

Information

• Patent Grant
• 3804008

• References
• Source

• Patent Number

  3,804,008

• Date Filed

  Not available

• Date Issued

  Tuesday, April 16, 1974
  50 years ago

• CPC

  • B41J2/50 - by the selective combination of two or more non-identical printing elements
  • B41J2/495 - by selective printing from a rotating helical member
  • B41J9/38 - Electromagnetic means

• US Classifications

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