724297

Information

• Patent Grant
• 724297

• References
• Source

• Patent Number

  724,297

• Date Filed

  Not available

• Date Issued

  Tuesday, March 31, 1903
  122 years ago

• CPC

  • B41J21/18 - characterised by application of scales or indicators

• US Classifications

  • 400 - Typewriting machines
  • D14 - Recording, communication, or information retrieval equipment