1420802

Information

• Patent Grant
• 1420802

• References
• Source

• Patent Number

  1,420,802

• Date Filed

  Not available

• Date Issued

  Tuesday, June 27, 1922
  102 years ago

• CPC

  • F25J3/04648 - argon
  • Y10S62/924 - Argon

• US Classifications

  • 062 - Refrigeration