693455

Information

• Patent Grant
• 693455

• References
• Source

• Patent Number

  693,455

• Date Filed

  Not available

• Date Issued

  Tuesday, February 18, 1902
  123 years ago

• CPC

  • B07B1/62 - heated by direct electric heating

• US Classifications

  • 209 - Classifying, separating, and assorting solids
  • 015 - Brushing, scrubbing, and general cleaning
  • 034 - Drying and gas or vapor contact with solids