1675721

Information

• Patent Grant
• 1675721

• References
• Source

• Patent Number

  1,675,721

• Date Filed

  Not available

• Date Issued

  Tuesday, July 3, 1928
  96 years ago

• CPC

  • B22C5/0495 - combined with another operation
  • Y10S241/10 - Foundry sand treatment

• US Classifications

  • 209 - Classifying, separating, and assorting solids
  • 164 - Metal founding
  • 241 - Solid material comminution or disintegration