3379920

Information

• Patent Grant
• 3379920

• References
• Source

• Patent Number

  3,379,920

• Date Filed

  Not available

• Date Issued

  Tuesday, April 23, 1968
  57 years ago

• CPC

  • C05G3/08 - with agents affecting the nitrification of ammonium compounds or urea in the soil
  • H01J23/08 - Focusing arrangements
  • H01J23/083 - Electrostatic focusing arrangements
  • H01J23/087 - Magnetic focusing arrangements

• US Classifications

  • 315 - Electric lamp and discharge devices: systems