3883970

Information

• Patent Grant
• 3883970

• References
• Source

• Patent Number

  3,883,970

• Date Filed

  Not available

• Date Issued

  Tuesday, May 20, 1975
  49 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