747771

Information

• Patent Grant
• 747771

• References
• Source

• Patent Number

  747,771

• Date Filed

  Not available

• Date Issued

  Tuesday, December 22, 1903
  121 years ago

• CPC

  • A01D17/18 - without a conveyor spiral

• US Classifications

  • 171 - Unearthing plants or buried objects
  • 209 - Classifying, separating, and assorting solids