2750640

Information

• Patent Grant
• 2750640

• References
• Source

• Patent Number

  2,750,640

• Date Filed

  Not available

• Date Issued

  Tuesday, June 19, 1956
  68 years ago

• CPC

  • B22C5/0495 - combined with another operation

• US Classifications

  • 209 - Classifying, separating, and assorting solids