2551978

Information

• Patent Grant
• 2551978

• References
• Source

• Patent Number

  2,551,978

• Date Filed

  Not available

• Date Issued

  Tuesday, May 8, 1951
  73 years ago

• CPC

  • A01B1/02 - Spades Shovels
  • F24B15/08 - Shovels with sifters

• US Classifications

  • 209 - Classifying, separating, and assorting solids
  • 076 - Metal tools and implements, making