1994768

Information

• Patent Grant
• 1994768

• References
• Source

• Patent Number

  1,994,768

• Date Filed

  Not available

• Date Issued

  Tuesday, March 19, 1935
  89 years ago

• CPC

  • G01N21/82 - producing a precipitate or turbidity
  • Y10T137/2698 - Electrical control
  • Y10T137/8158 - With indicator, register, recorder, alarm or inspection means

• US Classifications

  • 356 - Optics: measuring and testing
  • 127 - Sugar, starch, and carbohydrates
  • 137 - Fluid handling
  • 210 - Liquid purification or separation
  • 250 - Radiant energy