3855953

Information

• Patent Grant
• 3855953

• References
• Source

• Patent Number

  3,855,953

• Date Filed

  Not available

• Date Issued

  Tuesday, December 24, 1974
  50 years ago

• CPC

  • A01C7/105 - Seed sensors
  • G05D7/0611 - characterised by the set value given to the control element
  • Y02P60/16 - Machines for direct seeding
  • Y10S111/903 - Monitor
  • Y10S111/921 - Unique motor drive
  • Y10S111/922 - Variable drive mechanism

• US Classifications

  • 111 - Planting
  • 377 - Electrical pulse counters, pulse dividers, or shift registers: circuits and systems