2360328

Information

• Patent Grant
• 2360328

• References
• Source

• Patent Number

  2,360,328

• Date Filed

  Not available

• Date Issued

  Tuesday, October 17, 1944
  80 years ago

• CPC

  • G09B11/08 - Teaching shorthand

• US Classifications

  • 283 - Printed matter
  • 434 - Education and demonstration