1865288

Information

• Patent Grant
• 1865288

• References
• Source

• Patent Number

  1,865,288

• Date Filed

  Not available

• Date Issued

  Tuesday, June 28, 1932
  92 years ago

• CPC

  • A63H33/3077 - Typewriters

• US Classifications

  • 434 - Education and demonstration
  • 400 - Typewriting machines