2309157

Information

• Patent Grant
• 2309157

• References
• Source

• Patent Number

  2,309,157

• Date Filed

  Not available

• Date Issued

  Tuesday, January 26, 1943
  81 years ago

• CPC

  • A01B33/144 - with spring tools or resiliently-attached rigid tools

• US Classifications

  • 172 - Earth working
  • 037 - Excavating