3800933

Information

• Patent Grant
• 3800933

• References
• Source

• Patent Number

  3,800,933

• Date Filed

  Not available

• Date Issued

  Tuesday, April 2, 1974
  50 years ago

• CPC

  • B41J19/70 - power driven
  • B41J1/34 - Carriers rotating during impression
  • B41J19/20 - Positive-feed character-spacing mechanisms
  • Y10S400/901 - Continuously rotating type-head
  • Y10T74/18072 - Reciprocating carriage motions

• US Classifications

  • 400 - Typewriting machines
  • 074 - Machine element or mechanism