1331808

Information

• Patent Grant
• 1331808

• References
• Source

• Patent Number

  1,331,808

• Date Filed

  Not available

• Date Issued

  Tuesday, February 24, 1920
  105 years ago

• CPC

  • A01B47/00 - Soil-working with electric potential applied between tools and soil
  • A01G7/04 - Electric or magnetic treatment of plants for promoting growth

• US Classifications

  • 111 - Planting
  • 047 - Plant husbandry
  • 172 - Earth working