3522666

Information

• Patent Grant
• 3522666

• References
• Source

• Patent Number

  3,522,666

• Date Filed

  Not available

• Date Issued

  Tuesday, August 4, 1970
  54 years ago

• CPC

  • G09B29/10 - Map spot or coordinate position indicators Map reading aids
  • G06G1/06 - with rectilinear scales
  • 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