1704220

Information

• Patent Grant
• 1704220

• References
• Source

• Patent Number

  1,704,220

• Date Filed

  Not available

• Date Issued

  Tuesday, March 5, 1929
  95 years ago

• CPC

  • F22B23/06 - Component parts thereof
  • F22B23/00 - Water-tube boilers built-up from sets of spaced double-walled water tubes of return type in unilateral abutting connection with a boiler drum or with a header box
  • F22B23/04 - the water-tube

• US Classifications

  • 122 - Liquid heaters and vaporizers
  • 285 - Pipe joints or couplings