2215990

Information

• Patent Grant
• 2215990

• References
• Source

• Patent Number

  2,215,990

• Date Filed

  Not available

• Date Issued

  Tuesday, September 24, 1940
  84 years ago

• CPC

  • A01F17/04 - Pneumatic conveyors
  • Y10T74/1579 - Reversible

• US Classifications

  • 074 - Machine element or mechanism
  • 192 - Clutches and power-stop control