1864976

Information

• Patent Grant
• 1864976

• References
• Source

• Patent Number

  1,864,976

• Date Filed

  Not available

• Date Issued

  Tuesday, June 28, 1932
  92 years ago

• CPC

  • E02B7/14 - Buttress dams

• US Classifications

  • 405 - Hydraulic and earth engineering
  • 033 - Geometrical instruments