1818656

Information

• Patent Grant
• 1818656

• References
• Source

• Patent Number

  1,818,656

• Date Filed

  Not available

• Date Issued

  Tuesday, August 11, 1931
  92 years ago

• CPC

  • A01B13/025 - with passively driven rotating disc-like elements for forming the ridge

• US Classifications

  • 172 - Earth working
  • 111 - Planting