1991929

Information

• Patent Grant
• 1991929

• References
• Source

• Patent Number

  1,991,929

• Date Filed

  Not available

• Date Issued

  Tuesday, February 19, 1935
  90 years ago

• CPC

  • F22D5/10 - and with pistons or membranes unitary with the feed inlet valves

• US Classifications

  • 122 - Liquid heaters and vaporizers