1853821

Information

• Patent Grant
• 1853821

• References
• Source

• Patent Number

  1,853,821

• Date Filed

  Not available

• Date Issued

  Tuesday, April 12, 1932
  93 years ago

• CPC

  • D06F49/003 - Doors or covers; Safety arrangements
  • Y10S220/20 - Safety locking devices

• US Classifications

  • 210 - Liquid purification or separation
  • 192 - Clutches and power-stop control
  • 220 - Receptacles