2090790

Information

• Patent Grant
• 2090790

• References
• Source

• Patent Number

  2,090,790

• Date Filed

  Not available

• Date Issued

  Tuesday, August 24, 1937
  87 years ago

• CPC

  • E02F3/9293 - Component parts of suction heads
  • E02F3/9225 - with rotating cutting elements

• US Classifications

  • 037 - Excavating