1393680

Information

• Patent Grant
• 1393680

• References
• Source

• Patent Number

  1,393,680

• Date Filed

  Not available

• Date Issued

  Tuesday, October 11, 1921
  103 years ago

• CPC

  • E02F3/9281 - with axis of rotation in horizontal and transverse direction of the suction pipe

• US Classifications

  • 037 - Excavating