1821714

Information

• Patent Grant
• 1821714

• References
• Source

• Patent Number

  1,821,714

• Date Filed

  Not available

• Date Issued

  Tuesday, September 1, 1931
  93 years ago

• CPC

  • B65G33/00 - Screw or rotary spiral conveyors
  • B65G2812/0572 - Discharging valves

• US Classifications

  • 406 - Conveyors: fluid current