1778574

Information

• Patent Grant
• 1778574

• References
• Source

• Patent Number

  1,778,574

• Date Filed

  Not available

• Date Issued

  Tuesday, October 14, 1930
  94 years ago

• CPC

  • E01B2/006 - Deep foundation of tracks
  • E02D29/0275 - cast in situ

• US Classifications

  • 405 - Hydraulic and earth engineering