1991543

Information

• Patent Grant
• 1991543

• References
• Source

• Patent Number

  1,991,543

• Date Filed

  Not available

• Date Issued

  Tuesday, February 19, 1935
  90 years ago

• CPC

  • A01D33/12 - Driving mechanisms, with or without motor
  • Y10T74/2186 - Gear casings

• US Classifications

  • 171 - Unearthing plants or buried objects
  • 074 - Machine element or mechanism