1978238

Information

• Patent Grant
• 1978238

• References
• Source

• Patent Number

  1,978,238

• Date Filed

  Not available

• Date Issued

  Tuesday, October 23, 1934
  90 years ago

• CPC

  • E02F3/145 - drives

• US Classifications

  • 474 - Endless belt power transmission systems or components
  • 037 - Excavating
  • 198 - Conveyors: power-driven