3643459

Information

• Patent Grant
• 3643459

• References
• Source

• Patent Number

  3,643,459

• Date Filed

  Not available

• Date Issued

  Tuesday, February 22, 1972
  52 years ago

• CPC

  • F25B41/062 - Expansion valves
  • F25B2341/0651 - actuated by electric heating means
  • Y02B30/72 - Electric or electronic refrigerant flow control

• US Classifications

  • 062 - Refrigeration