1389212

Information

• Patent Grant
• 1389212

• References
• Source

• Patent Number

  1,389,212

• Date Filed

  Not available

• Date Issued

  Tuesday, August 30, 1921
  104 years ago

• CPC

  • E02B1/00 - Equipment or apparatus for, or methods of, general hydraulic engineering
  • E02B7/38 - Rolling gates or gates moving horizontally in their own plane

• US Classifications

  • 405 - Hydraulic and earth engineering