3442221

Information

• Patent Grant
• 3442221

• References
• Source

• Patent Number

  3,442,221

• Date Filed

  Not available

• Date Issued

  Tuesday, May 6, 1969
  55 years ago

• CPC

  • A01C7/04 - Single-grain seeders with or without suction devices
  • Y10S111/917 - Gel

• US Classifications

  • 418 - Rotary expansible chamber devices
  • 047 - Plant husbandry
  • 111 - Planting