1969315

Information

• Patent Grant
• 1969315

• References
• Source

• Patent Number

  1,969,315

• Date Filed

  Not available

• Date Issued

  Tuesday, August 7, 1934
  90 years ago

• CPC

  • F24D19/0012 - Comprising regulation means

• US Classifications

  • 251 - Valves and valve actuation
  • 138 - Pipes and tubular conduits
  • 237 - Heating systems