589233

Information

• Patent Grant
• 589233

• References
• Source

• Patent Number

  589,233

• Date Filed

  Not available

• Date Issued

  Tuesday, August 31, 1897
  127 years ago

• CPC

  • G03G15/6582 - Special processing for irreversibly adding or changing the sheet copy material characteristics or its appearance
  • B41J9/26 - Means for operating hammers to effect impression

• US Classifications

  • 400 - Typewriting machines