2140341

Information

• Patent Grant
• 2140341

• References
• Source

• Patent Number

  2,140,341

• Date Filed

  Not available

• Date Issued

  Tuesday, December 13, 1938
  86 years ago

• CPC

  • C13B35/08 - by physical means

• US Classifications

  • 127 - Sugar, starch, and carbohydrates
  • 204 - Chemistry: electrical and wave energy
  • 210 - Liquid purification or separation
  • 435 - Chemistry: molecular biology and microbiology