1939143

Information

• Patent Grant
• 1939143

• References
• Source

• Patent Number

  1,939,143

• Date Filed

  Not available

• Date Issued

  Tuesday, December 12, 1933
  91 years ago

• CPC

  • C22B11/10 - by amalgamating
  • Y10S494/902 - involving the use of mercury

• US Classifications

  • 209 - Classifying, separating, and assorting solids
  • 494 - Imperforate bowl: centrifugal separators