3421239

Information

• Patent Grant
• 3421239

• References
• Source

• Patent Number

  3,421,239

• Date Filed

  Not available

• Date Issued

  Tuesday, January 14, 1969
  56 years ago

• CPC

  • G09D1/00 - Railway or like time or fare tables Indicating or reading aids therefor

• US Classifications

  • 040 - Card, picture, or sign exhibiting
  • 283 - Printed matter