3924461

Information

• Patent Grant
• 3924461

• References
• Source

• Patent Number

  3,924,461

• Date Filed

  Not available

• Date Issued

  Tuesday, December 9, 1975
  49 years ago

• CPC

  • B61D15/08 - Railway inspection trolleys
  • B61K9/08 - Measuring installations for surveying permanent way

• US Classifications

  • 073 - Measuring and testing
  • 033 - Geometrical instruments