3819028

Information

• Patent Grant
• 3819028

• References
• Source

• Patent Number

  3,819,028

• Date Filed

  Not available

• Date Issued

  Tuesday, June 25, 1974
  51 years ago

• CPC

  • B41J2/22 - characterised by selective application of impact or pressure on a printing material or impression-transfer material
  • B41J19/24 - Pawl and ratchet

• US Classifications

  • 400 - Typewriting machines
  • 178 - Telegraphy