3775859

Information

• Patent Grant
• 3775859

• References
• Source

• Patent Number

  3,775,859

• Date Filed

  Not available

• Date Issued

  Tuesday, December 4, 1973
  51 years ago

• CPC

  • E01B35/02 - for spacing, for cross levelling for laying-out curves
  • B02C18/38 - Drives
  • B61K9/08 - Measuring installations for surveying permanent way
  • E01B2203/16 - Guiding or measuring means

• US Classifications

  • 033 - Geometrical instruments