1786020

Information

• Patent Grant
• 1786020

• References
• Source

• Patent Number

  1,786,020

• Date Filed

  Not available

• Date Issued

  Tuesday, December 23, 1930
  94 years ago

• CPC

  • E01B27/102 - Removing unwanted material without removing the ballast

• US Classifications

  • 198 - Conveyors: power-driven