1821726

Information

• Patent Grant
• 1821726

• References
• Source

• Patent Number

  1,821,726

• Date Filed

  Not available

• Date Issued

  Tuesday, September 1, 1931
  93 years ago

• CPC

  • A47J27/09 - Safety devices including the pressure indicators
  • A47J27/0808 - of the bridge-type
  • A47J27/092 - Devices for automatically releasing pressure before opening
  • Y10S220/17 - Pressure and temperature locks

• US Classifications

  • 220 - Receptacles
  • 126 - Stoves and furnaces