1504924

Information

• Patent Grant
• 1504924

• References
• Source

• Patent Number

  1,504,924

• Date Filed

  Not available

• Date Issued

  Tuesday, August 12, 1924
  100 years ago

• CPC

  • F22B21/065 - involving an upper and lower drum of annular shape
  • F28D7/1669 - the conduit assemblies having an annular shape; the conduits being assembled around a central distribution tube
  • F28G1/08 - having scrapers, hammers, or cutters

• US Classifications

  • 122 - Liquid heaters and vaporizers