3488863

Information

• Patent Grant
• 3488863

• References
• Source

• Patent Number

  3,488,863

• Date Filed

  Not available

• Date Issued

  Tuesday, January 13, 1970
  55 years ago

• CPC

  • G09B29/00 - Maps Plans Charts Diagrams
  • G09D1/00 - Railway or like time or fare tables Indicating or reading aids therefor

• US Classifications

  • 434 - Education and demonstration
  • 116 - Signals and indicators