1169172

Information

• Patent Grant
• 1169172

• References
• Source

• Patent Number

  1,169,172

• Date Filed

  Not available

• Date Issued

  Tuesday, January 25, 1916
  109 years ago

• CPC

  • A01D17/22 - with several co-operating sifter bands

• US Classifications

  • 171 - Unearthing plants or buried objects