1442274

Information

• Patent Grant
• 1442274

• References
• Source

• Patent Number

  1,442,274

• Date Filed

  Not available

• Date Issued

  Tuesday, January 16, 1923
  102 years ago

• CPC

  • F22D1/14 - Safety or venting devices

• US Classifications

  • 122 - Liquid heaters and vaporizers
  • 210 - Liquid purification or separation