3611586

Information

• Patent Grant
• 3611586

• References
• Source

• Patent Number

  3,611,586

• Date Filed

  Not available

• Date Issued

  Tuesday, October 12, 1971
  53 years ago

• CPC

  • B41J3/365 - Toy typewriters
  • G09B17/00 - Teaching reading

• US Classifications

  • 434 - Education and demonstration
  • 400 - Typewriting machines