533457

Information

• Patent Grant
• 533457

• References
• Source

• Patent Number

  533,457

• Date Filed

  Not available

• Date Issued

  Tuesday, February 5, 1895
  130 years ago

• CPC

  • B07B1/62 - heated by direct electric heating

• US Classifications

  • 209 - Classifying, separating, and assorting solids